| William H. R. McMartin | |
| Birth Date: | 10 June 1854 |
| Birth Place: | Ormstown, Canada East |
| Death Place: | Santa Clara, California |
| State Assembly: | California |
| District: | 43rd |
| Term: | January 5, 1903 - January 2, 1905 |
| Preceded: | Martin W. Brady |
| Succeeded: | Marc Anthony |
| Party: | Republican |
| Spouse: | [1] |
| Children: | 3 |
William H. R. McMartin (June 10, 1854 - April 23, 1945) born in Ormstown, Canada East,[2] and served in the California State Assembly for the 43rd district from 1903 to 1905.[3]