| DALE | -------- | widow | Main | Fairview | |
| DALE | Samuel | blacksmith | Jamison | Petrolia | |
| DALY | Jack | Kittanning | Millerstown | ||
| DAME | W M | attorney | corner Main and Railroad | Petrolia | boards Forest house |
| DANN | Jacob | tailor | Main | Middle Lancaster | |
| DARLING | M N | hostler | boards Ray house | Fairview | |
| DAUBENSPECK | William | Main | Greece City | ||
| DAUGHERTY | W H | foreman United Pipe Lines | res Green | Millerstown | |
| DAVENPORT | R N | insurance agent | Railroad | Petrolia | |
| DAVID | Sylvanus | Main | Centreville | ||
| DAVIDSON | clerk | Central ave | Millerstown | ||
| DAVIDSON | J M | lumber dealer | Slippery Rock | Millerstown | residence Central ave |
| DAVIS | A D | oil operator | boards European hotel | Millerstown | |
| DAVIS | Benjamin | harness maker | Main | Centreville | |
| DAVIS | Benjamin | harness maker | Main | Butler | |
| DAVIS | Dr A M | Harrisville | |||
| DAVIS | Melissa | widow | west Cunningham | Butler | |
| DAVIS | Sophia | widow | Fairview | Petrolia | |
| DAWSON | J G | of Dawson & Son | First Ave | Millerstown | |
| DAWSON | R P | of Dawson & Son | First Ave | Millerstown | |
| DAWSON | W T | clerk | First Ave | Millerstown | |
| DAWSON & SON | grocers | Slippery Rock | Millerstown | ||
| DAY | H W | carpenter | Mill | Millerstown | |
| DeARMAIN | John W | photographer | boards Vogeley house | Butler | |
| DeCOTNONVILLE | R | physician | Jamison | Petrolia | |
| DELAMATER | A H | P T Co | boards Eastern house | Petrolia | |
| DELAMATER | L | agent Pennsylvania Transportation Co | res Main | Millerstown | |
| DEMONT | Emil | barber | Washington | Butler | |
| DEMPSEY | P | oil operator | boards Grand Central | Karns City | |
| DENNISON | E C | headquarters for Brocton Fruites, Choice Cigars, * | Railroad | Petrolia | *Tobacco, Groceries, &c. |
| DENNY | J M | Main | Greece City | ||
| DENTON | Robert | torpedo business | boards Main | Millerstown | |
| DESSO | Joseph | teamster | Main | Centreville | |
| DETTRE | Louis | druggist | boards European hotel | Millerstown | |
| DIBBLE | J F | books and stationery | Main | Millerstown | boards Reiber house |
| DICK | Henderson H | tanner | Butler | Prospect | |
| DICKEY | Henry | shoemaker | west Penn | Butler | |
| DICKEY | Isaac | of Scott & Dickey | Ray house | Fairview | |
| DICKEY | John A | marble cutter | Franklin | Prospect | |
| DICKEY | Miss M E | milliner | Brady | Buena Vista | |
| DICKEY | Samuel | plasterer | west Cunningham | Butler | |
| DICKSON | Campbell | barber | Slippery Rock | Millerstown | |
| DIETER | MICHAEL | Dry Goods, Groceries, Clothing, &c. | Main | Millerstown | |
| DIETER | Miss Ellen | clerk | Main | Millerstown | |
| DIFFENBACHER | S R | of DIFFENBACHER & GILKEY | res. Mercer | Butler | |
| DIFFENBACHER & GILKEY | dentists | east Jefferson near Main | Butler | ||
| DILLON | William | butcher | boards Monitor house | Petrolia | |
| DINDINGER | John | Main | Zelienople | ||
| DIXON | Rev William | ||||
| DODDS | James O | farmer | Franklin | Prospect | |
| DODDS | Jesse | Butler | Prospect | ||
| DODDS | Rev | pastor U P Church | Main | Fairview | |
| DODDS | W W | farmer | Franklin | Prospect | |
| DODDS | J B | carpenter | boards North | Butler | |
| DODGE | W D | liquor dealer | north Main | Butler | residence Cunningham |
| DOESMAN | Mrs N | hair worker | north Main | Butler | |
| DOLAN | L | laborer | Water | Millerstown | |
| DONAGAN | Jemima | Harrisville | |||
| DONAGHY | Thomas | proprietor Springdale hotel | Springdale | Butler | |
| DONAHUE | Joseph | Main | Centreville | ||
| DONALD | G S | clerk | boards Slippery Rock | Millerstown | |
| DONALD | Henry | boiler maker | boards European hotel | Millerstown | |
| DONALD | Isaiah | ||||
| DONALDSON | A | ||||
| DONALDSON | Edward | clerk | Main | Karns City | |
| DONALDSON | J | Main | Greece City | ||
| DONALDSON | J C | county commissioner | Jefferson | Butler | |
| DONALDSON | J N | blacksmith | Evansburg | ||
| DONALDSON | JOHN | grocer | Fairview | Karns City | |
| DONIHI | Fred | stage driver | boards Slippery Rock | Millerstown | |
| DONLEY | George | driller | boards Reiber house | Millerstown | |
| DONLEY | J T | attorney | Diamond | Butler | boards Jack's hotel |
| DONLEY | William | driller | boards Reiber house | Millerstown | |
| DORSEY | J P | barber | Slippery Rock | Millerstown | residence Main |
| DOTY | Frank | contractor | boards Ray house | Fairview | |
| DOTY | J | laborer | boards Glass house | Millerstown | |
| DOUGHERTY | James | carpenter | corner Franklin and Locust | Butler | |
| DOUGHERTY | John | east end Elm | Butler | ||
| DOUGHERTY | John C | tinner | Main | Karns City | |
| DOUGHERTY | Joseph | clerk | boards Jefferson | Butler | |
| DOUGHERTY | Richard | pumper | boards Main | Millerstown | |
| DOUGHERTY | William | tin shop | Main | Karns City | |
| DOUGHERTY | Wilson | tinsmith | Jamison | Petrolia | |
| DOUGLAS | John | carpenter | New Castle | Prospect | |
| DOUGLAS | William C | harness maker | Pittsburgh | Prospect | |
| DOUGLASS | Andrew | tanner | Pittsburgh | Prospect | |
| DOWNS | John | laborer | Main | Centreville | |
| DRACE | John | laborer | Water | Butler | |
| DRAPER | Harris | oil operator | boards Boulger house | Petrolia | |
| DREBERT | Asmus | tinner | Evansburg | ||
| DREE | George | Main | Zelienople | ||
| DRESHER | Andrew | Saxonburg | |||
| DRESHER | Henry | Saxonburg | |||
| DRESHER | William | Saxonburg | |||
| DRESSER | M B | laborer | near Railroad | Karns City | |
| DUFFIELD | W G | assistant superintendent L H Taylor & Co | residence Central ave | Millerstown | |
| DUFFORD | George L | blacksmith | North | Butler | |
| DUFFORD | J H | shoemaker | Main | Fairview | |
| DUFFY | Charles | dry goods, groceries | north Main | Butler | res. McKean |
| DUFFY | Hugh | ||||
| DUFFY | John C | ||||
| DUFFY | Michael | clerk | Pringle's exchange | Butler | |
| DUFFY | Neil | ||||
| DUGAL | David | Main near Diamond | Butler | ||
| DUGAN | Daniel | tool dresser | boards O'Brien house | Millerstown | |
| DUGGAN | D R | bar tender | Slippery Rock | Millerstown | |
| DUNBAR | A | barber | Fairview | Petrolia | |
| DUNCAN | A | boiler maker | Modoc | ||
| DUNCAN | E Z | manager W U Telegraph office | boards Vogeley house | Butler | |
| DUNCAN | F G | telegraph operator | boards Main | Millerstown | |
| DUNKLE | A | Main | Greece City | ||
| DUNKLE | S K | telegraph operator | boards Main | Millerstown | |
| DUNLAP | James | surveyor | east Jefferson | Butler | |
| DUNLAP | Jefferson | ||||
| DUNLAP | John | ||||
| DUNLAP | Joshua | ||||
| DUNLAP | Samuel | watchman | Elm | Butler | |
| DUNLAP | Winfield | ||||
| DUNLOP | Robert | carpenter | Main | Centreville | |
| DUNN | John | carpenter | New Castle | Prospect | |
| DUNN | M F | carpenter | boards Monitor house | Petrolia | |
| DURHAM | C W | Main | Greece City | ||
| DUTTER | Jesse | shoemaker | Butler | Prospect | |
| DWYER | Edward | laborer | boards Central hotel | Butler |