Somersville was one of the towns of the Black Diamond Coal Mining region of Contra Costa County. Listed are the names, occupations and nativity of those registered to vote. The list also contains a description, naturalization information, date of registration,literacy and age.
For more information please contact Query Committee. We can provide you with a copy of the page including a description of the precient and a map. We ask a $5 donation for each page of the listing.
| NAME | Occupation | Nativity |
| John Andersen | Miner | Sweden |
| Richard Anderson | Blacksmith | Ireland |
| Roger Boyle | Miner | Ireland |
| Patrick Brown | Saloon Keeper | Ireland |
| Jame Bryant | Miner | Great Britain |
| Samuel Brown | Merchant | Pennsylvania |
| Henry Taylor Boxill | Carpenter | Nova Scotia |
| Charles I Bryant | Laborer | California |
| Thomas J Brown | Clerk | California |
| Antonio Banchers | Miner | Italy |
| Joseph Buffo | Miner | Italy |
| Gasparo Buffa | Miner | Italy |
| Fermin Buffo | Miner | Italy |
| Peter Burns | Miner | Ireland |
| Charles Edmond Boxill | Miner | Pennsylvania |
| William T Buxton | Miner | England |
| David E Clement | laborer | California |
| Francis Campbell | Miner | Missouri |
| Patrick Corcoran | Farmer | Ireland |
| William Steel Wood Dover | Miner | England |
| Patrick Daley | Miner | Ireland |
| James I Dickinson | Miner | England |
| Vincenzi Devincenzo | Miner | Italy |
| John H Daley | School Teacher | California |
| Charles B Daley | Miner | California |
| Peter Edwards | Miner | Great Britain |
| Robert Easton | Miner | Scotland |
| John F Evans | Miner | Wales |
| William M Easton | Miner | California |
| David X Evans | Miner | Wales |
| John Evans | Miner | Wales |
| Thomas J Evans | Miner | Pennsylvania |
| Antonio Faletti | Miner | Italy |
| Thomas E Fitzgerald | Miner | Missouri |
| David E Griffith | Stock Raiser | Wales |
| Edward John Griffith | Miner | Great Britain |
| John Griffith | Miner | Wales |
| Giovanni Gionochio | Miner | Italy |
| Josephus Gifford | Farmer | New York |
| Thomas Henry Golden | Miner | Pennsylvania |
| Thomas J Griffiths | Miner | Great Britain |
| William T Griffiths | Laborer | California |
| James Henry Harrington | Miner | Ireland |
| William Haggerty | Miner | Ireland |
| John Haggerty | Laborer | Illinois |
| James Haggerty | Laborer | Illinois |
| David D Harris | Miner | Wales |
| James H Hunter | Engineer | Pennsylvania |
| Cornelius Hanlon | Farmer | Ireland |
| Edward FT Hobson | Miner | California |
| Sampson Hobson | Laborer | Australia |
| Benjamin N Jones | Miner | Pennsylvania |
| John N Jones | Boatmaster | Wales |
| William Nathaniel Jones | Miner | California |
| Francis Kain | Laborer | Virginia |
| John Lattimore | Miner | California |
| William John Laird | Miner | California |
| Thomas Leam | Miner | England |
| Leyshen Lougher | Farmer | England |
| David Leckie | Miner | Scotland |
| David Lattimore | Farmer | California |
| Richard Lougher | Saloon Keeper | Great Britain |
| William Lougher | Farmer | Wales |
| James Lattimore | Farmer | California |
| Robert Latimer | Farmer | California |
| William Latimer | Miner | California |
| George Lougher | Miner | Wales |
| William Lougher Jr | Farmer | Illinois |
| Peter Martin | Miner | Ireland |
| Michael Mulherin | Miner | Ireland |
| William May | Rancher | St Helena |
| William James Meddle | Laborer | California |
| Adam Morris | Miner | Great Britain |
| John Mills | Saloon Keeper | California |
| Richard Mills | Saloon Keeper | England |
| Thomas Martin | Miner | California |
| Walter McIntosh | Miner | Scotland |
| Patrick McDermont | Miner | Ireland |
| John McAvoy | Miner | England |
| William Fletcher McAvoy | Laborer | California |
| William J McDermott | Miner | California |
| James McDermott | Miner | Ireland |
| James McHugh | Miner | Ireland |
| John Lawrence McAvoy | Miner | California |
| Charles McQuirk | Farmer | California |
| Walter Nellis | Miner | New York |
| Jacob Parker | Teamster | Michigan |
| William Pehl | Clerk | California |
| Joseph Pehl | Laborer | California |
| George R Parker | Teamster | Nevada |
| John Parry | Miner | Wales |
| Martin Raber | Barber | Germany |
| James N Rankin | Miner | Scotland |
| Leonard Richardson | Miner | England |
| Hannibal Rough | Miner | Michigan |
| John Still | Miner | Austria |
| Francisco Schinchetti | Miner | Italy |
| William Stone | Miner | California |
| Bartholomew J Singlewood | Hotel Keeper | England |
| Michele Santini | Miner | Italy |
| James Smith | Miner | Ireland |
| Edward Smith | Laborer | Pennsylvania |
| Howell M Thomas | Miner | Great Britain |
| Reese G Thomas | Farmer | California |
| Robert Tait | Miner | Scotland |
| John Thomas | Miner | Wales |
| William Thomas | Miner | England |
| Lnigi Visconti | Miner | Italy |
| Abel Vaughn | Farmer | Wales |
| Philip Walker | Stockman | Rhode Island |
| Edmund H Williams | Miner | California |
| Joseph James Welsh | Miner | Pennsylvania |
| Robert Waters | Miner | Nova Scotia |
| Thomas P Wilson | Miner | Scotland |
| George Wesendunk | Engineer | Wisconsin |