| RAAB | Christian | Saxonburg | |||
| RAAB | Paulus | Saxonburg | |||
| RADER | George | Main | Zelienople | ||
| RADER | Peter | Main | Zelienople | ||
| RAGAN | M | helper | Main | Karns City | |
| RAIFSNYDER | David | tool dresser | boards White house | Petrolia | |
| RAINEY | W W | clerk | boards Grand Central | Karns City | |
| RALPH | Isaac | oil operator | boards Forest house | Petrolia | |
| RALPH | James | oil operator | boards Forest house | Petrolia | |
| RALPH | William | oil operator | boards Froest house | Petrolia | |
| RALSTON | Jennie E | of RITTER & RALSTON | residience Cherry Hill | Butler | |
| RALSTON | John | student | boards Lincoln | Butler | |
| RALSTON | W S | superintendent Moorhead & Tack | boards Grand Central | Karns City | |
| RALSTON | William | ||||
| RALSTON, McQUAIDE & CO | Fairview Deposit Bank | Main | Fairview | ||
| RALSTON, McQUAIDE & CO | bankers | Main | Karns City | ||
| RAMSEY | A C | druggist | Main | Karns City | boards Apollo house |
| RAMSEY | David S | shoemaker | Main | Centreville | |
| RAMSEY | J M | Harrisville | |||
| RAMSEY | J W | shoemaker | New Castle | Centreville | |
| RAMSEY | James | hostler | west Cunningham | Butler | |
| RAMSEY | Nancy | widow | Main | Centreville | |
| RAMSEY | Susan | widow | west Cunningham | Butler | |
| RAMSEY | William L | grocer | Main | Centreville | |
| RANDOLPH | A G | Main | Harmony | ||
| RANDOLPH | E F | liquor dealer | Mill | Millerstown | boards Reiber house |
| RANDOLPH | Ed., Jr | miner | Main | Zelienople | |
| RANDOLPH | Edward | justice of the peace | Main | Zelienople | |
| RANDOLPH | W W | ticket and freight agent P & K C R R | Euclid ave | Karns City | |
| RANSELL | William | coal business | Main | Millerstown | |
| RAVER C L & CO | clothing | Main | Petrolia | ||
| RAWSON | Eugene | clerk | boards west Cunningham | Butler | |
| RAY | Elizabeth | widow | Water | Butler | |
| RAY | M S | justice of the peace | main | Fairview | |
| RAY HOUSE | Scott & Dickey, proprietors | main | Fairview | ||
| REBHUN | Charles | telegraph operator | Franklin | Butler | |
| RECK | William L | Saxonburg | |||
| REDDING | John | mounder | boards Schrieber house | Butler | |
| REDICK | J C | of J C REDICK & CO | north Main | Butler | |
| REDICK | James | Main | Greece City | ||
| REDICK J C & CO | druggists | north Main | Butler | ||
| REED | Geo W | marble works | Franklin | Prospect | |
| REED | George | driller | boards Glass house | Millerstown | |
| REED | George W | north Main | Butler | ||
| REED | J L | Postmaster and Merchant | North Washington | ||
| REED | James W | marble works | Franklin | Prospect | |
| REED | John | Main | Zelienople | ||
| REED | Lewis | Main | Zelienople | ||
| REED | Mrs. Letitia | Harrisville | |||
| REED | W E | Harrisville | |||
| REED | William | clerk | boards corner Mill and Green | Millerstown | |
| REEDY | John | hostler | boards Main | Petrolia | |
| REEP | E E | Tobacco, Cigars, Confectionery, &c. | Main | Millerstown | residence Slippery Rock |
| REGAN | John | machinist | boards Fairview | Karns City | |
| REGAN | Michael | machinist | boards Fairview | Karns City | |
| REGAN | Thomas | driller | boards O'Brien house | Millerstown | |
| REGEN | G S | of SUTTON & REGEN | boards Finley house | Butler | |
| REIBER | Albert | of M REIBER & SON | residence north Main | Butler | |
| REIBER | Ferd | attorney | Main | Butler | |
| REIBER | George | of JACOB REIBER & BRO | Main | Butler | |
| REIBER | George | liquor dealer | Main | Butler | residence Kittanning road |
| REIBER | George J | clerk | Main | Butler | |
| REIBER | Henry | distiller | Kittanning road | Butler | |
| REIBER | Howard | clerk | north Main | Butler | |
| REIBER | Jacob | of JACOB REIBER & BRO | east Jefferson | Butler | |
| REIBER | M | of M REIBER & SON | residence north Main | Butler | |
| REIBER | M J | grocer | south Main | Butler | |
| REIBER | Martin | clerk | north Main | Butler | |
| REIBER | Martin | miller | Kittanning road | Butler | |
| REIBER | W M | proprietor Reiber House | Main | Millerstown | |
| REIBER HOUSE | W M Reiber | proprietor | Main | Millerstown | |
| REIBER JACOB & BRO | distillers and liquor dealers | w Jefferson | Butler | ||
| REIBER M & SON | grocers | corner Main and Cunningham | Butler | ||
| REID & DURANT | hardware and oil well supplies | Main | Millerstown | ||
| REIHING | John A | messenger W U Telegraph Co. | Jefferson | Butler | |
| REINHART | A | rig builder | boards Grand Central | Karns City | |
| REISINGER | John | of Reisinger & Kelly | cor Railroad and Union | Petrolia | |
| REISINGER & KELLY | carpenters | cor Railroad and Union | Petrolia | ||
| RELIEF PIPE LINE COMPANY | office Slippery Rock | Millerstown | |||
| REMER | W J | of Remer & Todd | Railroad | Petrolia | |
| REMER & TODD | hotel | Railroad | Petrolia | ||
| RENN | J | Saxonburg | |||
| RENNER | -------- | widow | Main | Zelienople | |
| RENNO | F M | of RENNO BROS | North | Butler | |
| RENNO | George | of RENNO BROS | North | Butler | |
| RENNO BROS | marble works | Main | Butler | ||
| RENO | Adam | laborer | North | Butler | |
| RENO | Mary | widow | North | Butler | |
| RENO REAL ESTATE COMPANY | C Bullock | superintendent | office Argyle | Petrolia | |
| RETCHER | William | saloon and hotel | Main | Millerstown | |
| RHEINLANDER | William | blacksmith | corner Wayne & McKean | Butler | |
| RHEINLANDER | William, Jr | blacksmith | cor Wayne & McKean | Butler | |
| RHINE | William | teamster | Springdale | Butler | |
| RHODES | A B | ||||
| RHODES | A N | clerk | Butler | ||
| RHODES | James | boards Boulger house | Petrolia | ||
| RHODES | Peter | ||||
| RHODES | Samuel | ||||
| RHODES | Thomas | Main | Centreville | ||
| RHYAN | Jacob | laborer | east Jefferson | Butler | |
| RICE | H E | porter | European hotel | Millerstown | |
| RICHARDS | E C | harness and saddle manufacturer | Jamison | Petrolia | |
| RICHARDS | F J | harness maker | Main | Millerstown | |
| RICHARDSON | N M | physician | corner Pittsburgh & New Castle | Prospect | |
| RICHARDSON | T | blacksmith and machinist | Main | Karns City | |
| RICHARDSON | T, Jr | blacksmith | Main | Karns City | |
| RICHEY | A B | teamster | north McKean | Butler | |
| RICHEY | A T | miner | Springdale | Butler | |
| RICHEY | J B | surveyor | boards Adams house | Fairview | |
| RICHEY | John | policeman | east Cunningham | Butler | |
| RICHEY | John A | Main | Greece City | ||
| RICHEY | William | constable | Main | Butler | |
| RIDDLE | Daniel | laborer | Water | Butler | |
| RIDDLE | J W | shoemaker | boards Railroad | Petrolia | |
| RIDDLE | James D | carpenter | Main | Centreville | |
| RIDDLE | John | Main | Centreville | ||
| RIDDLE | S | Butler | Prospect | ||
| RIDDLE | Samuel | collier | Franklin | Prospect | |
| RIDDLE | Theodore | Butler | Prospect | ||
| RIDDLE | W C | Main | Centreville | ||
| RIDDLE | W H H | attorney | east Diamond, residence Fulton | Butler | |
| RIDDLE | William | cabinet maker | Franklin | Prospect | |
| RIDLEY | Julius | Saxonburg | |||
| RIEGER | John | of Frederick & Rieger | Green | Millerstown | |
| RIEGER | Louis | blacksmith | boards Wayne | Butler | |
| RIESENMAN | Martin | of ROESSING & RIESENMAN | West | Butler | |
| RIF | A | laborer | Centre Ave, Springdale | Butler | |
| RIGNEY | E V | of Rigney & Stone | Main | Karns City | |
| RIGNEY & STONE | meat market | Main | Karns City | ||
| RILEY | Edward | shoemaker | Slippery Rock | Millerstown | |
| RILEY | L | hostler | boards Main | Butler | |
| RIMBEY | Mrs. L | milliner | Main | Fairview | |
| RIPLEY | Frank | oil producer | boards Lowry house | Butler | |
| RIPLEY | R | boards Main | Millerstown | ||
| RISINGER | George | carpenter | boards Monitor house | Petrolia | |
| RITTER | W H | of RITTER & RALSTON | resdence Cherry Hill | Butler | |
| RITTER & RALSTON | Dry Goods, Millinery Goods and Trimmings | corner Main and Jefferson | Butler | ||
| RITZERT | John | harness maker | boards Main | Millerstown | |
| RIVERS | Claude | laborer | corner Water and Wayne | Butler | |
| ROBB | Elliott | flour, feed and seeds | east Jefferson, residence Main | Butler | |
| ROBBINS | D | hotel opposite Railroad depot | Karns City | ||
| ROBERTS | Charles | bar tender | Fairview | Petrolia | |
| ROBERTS | Sarah A | Portersville | |||
| ROBERTS | farmer | Springdale | Butler | ||
| ROBERTS TORPEDO COMPANY | office Argyle | Petrolia | |||
| ROBERTSON | WILLIAM | blacksmith and machinist | Main | Petrolia | |
| ROBINSON | John | Main | Greece City | ||
| ROBINSON | John | laborer | boards Slippery Rock | Millerstown | |
| ROBINSON | Thomas | attorney and editor Butler Eagle | residence Springdale | Butler | |
| ROBISON | James | Machinist | boards Union | Petrolia | |
| ROCKENSTEIN | A, Jr | stoves, tinware &e | east Jefferson | Butler | |
| ROCKENSTEIN | A, Sr | Main | Butler | ||
| ROCKENSTEIN | C | dry goods, millinery and clothing | Main, residence McKean | Butler | |
| ROCKENSTEIN | Joseph | saddler | Main | Karns City | |
| ROCKENSTEIN | Joseph | Saddles, Harness, Bridles, Whips &e | north Main | Butler | |
| RODENBAUGH | Alfred | Main | Harmony | ||
| RODENBAUGH | Joseph | carpenter | Main | Harmony | |
| RODGERS | Daniel | teamster | Washington | Butler | |
| RODGERS | Elizabeth | widow | Butler | Prospect | |
| ROESSING | A C | grocer | Modoc | ||
| ROESSING | Bernard | tanner | Washington | Butler | |
| ROESSING | L | travellling salesman | corner Washington and Bluff | Butler | |
| ROESSING | Louis | of ROESSING & RIESENMAN | Washington | Butler | |
| ROESSING | Wesley P | of G C ROESSING & SON | Washington | Butler | |
| ROESSING | C H | carriage blacksmith | Washington | Butler | |
| ROESSING | Conrad | tannery | Washington | Butler | |
| ROESSING | G C | of G C ROESSING & SON | Washington | Butler | |
| ROESSING & RIESENMAN | groceries, produce, grain and anthracite coal | east Jefferson, near Depot | Butler | ||
| ROESSING G C & SON | carriage manufacturers and undertakers | west Cunningham | Butler | ||
| ROLLINGS | Henry | Saxonburg | |||
| ROMAN | Edward | hostler | boards Central hotel | Butler | |
| ROOF | Stephen | works C C Co | boards Forest house | Petrolia | |
| ROSE | G L | restaurant and saloon | east Jefferson | Butler | |
| ROSENBERG | John | laborer | Shultz alley | Butler | |
| ROSENSTEEL | G M | helper | boards Bateman's hotel | Karns City | |
| ROSENSTEEL | William | blacksmith | near Main | Fairview | |
| ROSS | Fred | laborer | north McKean | Butler | |
| ROSS | George | hostler | west Cunningham | Butler | |
| ROSS | John | oil operator | boards Grand Central | Karns City | |
| ROSS | William | farmer | north Main | Butler | |
| ROTER | Louis | fireman | boards Barnes house | Butler | |
| ROTH | Catharine | widow | Wood | Harmony | |
| ROTH | David C | saw mill | Franklin | Prospect | |
| ROTH | John | merchant | Franklin | Prospect | |
| ROTH | John M | of BREDIN & ROTH | Lincoln | Butler | |
| ROTH | Lewis | merchant | Franklin | Prospect | |
| ROTH | Samuel | Franklin | Prospect | ||
| ROTH | Theophilus | corner New Castle & Franklin | Prospect | ||
| ROTH | William | blacksmith | Mercer | Harmony | |
| ROTHMEYER | George | Harrisville | |||
| ROW | C | butcher | Modoc | ||
| ROWE | Carrie | widow | west Cunningham | Butler | |
| RUBY | J N | blacksmith | Main | Middle Lancaster | |
| RUFF | Albert | of BICKEL & RUFF | north McKean | Butler | |
| RUMBERGER | C C | physician | Brady | Buena Vista | |
| RUMMEL | P | carpenter | Railroad | Delano | |
| RUMMEL | William | dealer in general merchandise | Railroad | Delano | |
| RUNGE | Henry | Saxonburg | |||
| RUSCH | J | baker | Main | Butler | |
| RUSK | Frank | pumper | boards Bateman's hotel | Karns City | |
| RUSSELL | Ephraim | Main | Greece City | ||
| RUSSELL | J E | Main | Greece City | ||
| RUTHERFORD | James | clerk | Main | Fairview | |
| RUTHERFORD | R | hardware, stoves, &c | Main | Karns City | |
| RYAN | A J | clothing store | Modoc | ||
| RYAN | Patrick | bricklayer | Elm | Butler |