Isaac Beardmore
Dates
| / /1871 | Isaac Beardmore William Rigby's wife withdraws as business partner of William Beardmore (Senior) and Isaac Beardmore, Williams brother, takes over. |
| / /1879 | William Beardmore (Junior) Becomes partner with Isaac Beardmore. |
| / /1887 | William Beardmore (Junior) Becomes only partner when Isaac Beardmore retires. |
