| NAGAL | A C | tinner | boards Vogeley house | Butler | |
| NAGELE | Frederick | butcher | Jamison | Petrolia | |
| NASS | -------- | widow | Main | Harmony | |
| NAYLOR | Paul | hostler | Euclid ave | Karns City | |
| NEELY | Thomas | Main | Harmony | ||
| NEGLEY | J H | of J H & W C NEGLEY | south Diamond | Butler | |
| NEGLEY | W C | of J H & W C NEGLEY | boards Lowry house | Butler | |
| NEGLEY | editors and proprietors CITIZEN | south Diamond | Butler | ||
| NEHER | Jacob | Saxonburg | |||
| NESBITT | G H | Main | Greece City | ||
| NESBITT | G H | of Nesbitt & Lardin | near Railroad | Petrolia | |
| NESBITT & LARDIN | oil producers | near Railroad | Petrolia | ||
| NETHER | Martha | Saxonburg | |||
| NETTING | Alonzo | boarding stable | Main | Fairview | |
| NEUSTIFTER | M | coal miner | Springdale | Butler | |
| NEWELL | Mrs E | milliner | Slippery Rock | Millerstown | |
| NEWELL | Z | notary public and oil broker | Main | Millerstown | res Slippery Rock |
| NEWLON | W H | carpenter | Lincoln | Butler | |
| NEWTON | James | Portersville | |||
| NEYMAN | A M | physician | north Main | Butler | |
| NIBUR | John | butcher | Main | Karns City | |
| NICHOLAS | John | shoemaker | Main | Zelienople | |
| NICHOLAS | Leonard | of NICHOLAS & SMITH | Main | Butler | |
| NICHOLAS | widow | residence Pearl | Butler | ||
| NICHOLAS & SMITH | blacksmiths | north Main | Butler | ||
| NICHOLSON | A J | carpenter | Adams | Fairview | |
| NICHOLSON | Frank | laundry agent | boards main | Millerstown | |
| NICKEL | Peter | plasterer | corner Water and Wayne | Butler | |
| NICKEL | Roman | hostler | boards Central hotel | Butler | |
| NIESEN | Peter | tailor | Green | Millerstown | |
| NIGGEL | David | clerk | north Main | Butler | |
| NIGGEL | Joseph | of J NIGGEL & BRO | North | Butler | |
| NIGGEL | M | musician | Franklin | Butler | |
| NIGGEL | Thomas | of J NIGGEL & BRO | north Main | Butler | |
| NIGGEL | widow | north Main | Butler | ||
| NIGGEL J & BRO | hardware | east Jefferson | Butler | ||
| NIXON | Benjamin | blacksmith | Evansburg | ||
| NIXON & DAVIS | blacksmiths | Evansburg | |||
| NOHE | P J | of NOBE & HOFFNER | corner Penn and Elm | Butler | |
| NOHE | Peter | carpenter | corner Penn and Elm | Butler | |
| NOHE & HOFFNER | carpenters and builders | cor. Jefferson & Cliff | Butler | ||
| NOLAN | Edward | driller | boards Main | Karns City | |
| NOLAN | J M | tobacconist | boards Central hotel | Butler | |
| NOLAN | Thomas | driller | boards Main | Karns City | |
| NORTHRUP | B | machinist Star iron works | Main | Karns City | |
| NORTHRUP | B H | clerk | Jamison | Petrolia | |
| NORTHRUP | Bush | teamster | boards Jamison | Petrolia | |
| NORTHRUP | E | machinist Star iron works | Main | Karns City | |
| NORTON | Hiram | teamster | Green | Millerstown | |
| NORTON | T | driller | boards Eastern house | Petrolia | |
| NOXON | David | Mill | Millerstown |