| Ward | Name | Business | Capital ($) | Raw Materials ($) | Power ... | Males Employed | Females Employed | Output Value ($) | [products] |
| 4&6 | GARDNER,L | PIANO MAKER | 1,000 | 1,300 | [hand] | 3 | 0 | 3,500 | JOB WORK |
| 7 | CHICKERING,N | PIANO MAKER | 100,000 | 36,000 | [water] | 200 | 0 | 200,000 | PIANO FORTES |
| 7 | WILDINS,NEWHALL | PIANO MAKER | 25,000 | 4,100 | [hand] | 20 | 0 | 25,000 | PIANO FORTES |
| 7 | WOODWARD & BROWN | PIANO MAKER | 10,000 | 5,100 | [steam, water] | 20 | 0 | 30,000 | PIANO FORTES |
| 7 | HALLETT & LADD | PIANO MAKER | 10,000 | 6,700 | [water] | 25 | 0 | 25,000 | PIANO FORTES |
| 7 | HEWS,GEORGE | PIANO MAKER | 5,000 | 3,500 | [hand] | 10 | 0 | 15,000 | PIANO FORTES |
| 7 | HULLETT,CUMSTON & ALLEN | PIANO MAKER | 75,000 | 40,000 | [hand] | 20 | 0 | 75,000 | PIANO FORTES |
| 7 | EMMERSON, W. B. | PIANO MAKER | 6,000 | 7,000 | 8 | 0 | 16,500 | PIANO FORTES | |
| 7 | HARRIS, HEALLETT & CO. | PIANO MAKER | 25,000 | 15,000 | 50 | 0 | 52,500 | PIANO FORTES | |
| 9 | T. GILBERT & CO. | PIANO MAKER | 80,000 | 28,700 | [steam] | 80 | 0 | 112,500 | PIA FORTES |
| 9 | BROWN, LEWIS H. | PIANO MAKER | 4,000 | 2,375 | [hand] | 8 | 0 | 6,750 | PIANOS |
| 10 | CHICKERING CO. | PIANO MAKER | 500 | 1,100 | [hand] | 7 | 0 | 5,000 | PIANO FORTES |
| 10 | GILBERT, L. | PIANO MAKER | 30,000 | 13,000 | [hand] | 55 | 0 | 60,000 | PIANO FORTES |
| 10 | WINCHESTER, W. P. | PIANO MAKER | 2,000 | 8,000 | [hand] | 10 | 0 | 16,000 | PIANO FORTES |
| 10 | PAUL, C. | PIANO MAKER | 10,000 | 4,000 | [hand] | 6 | 0 | 9,000 | PIANO FORTES |
(from Boston1850select.xls, Gary J. Kornblith, History 258, Oberlin College, Spring 2000)