William Rigby
Dates
| / /1845 | William Rigby Becomes manager at the Parkhead Forge. |
| / /1854 | William Rigby Patents an improved steam hammer |
| / /1860 | William Rigby Buys the Parkhead Forge. |
| / /1861 | William Beardmore (Senior)
William Rigby William Beardmore (Senior) forms a partnership with William Rigby. |
| / /1863 | William Rigby On the death of William Rigby his wife becomes William Beardmore (Senior)'s business partner. |
| / /1871 | Isaac Beardmore William Rigby's wife withdraws as business partner of William Beardmore (Senior) and Isaac Beardmore, Williams brother, takes over. |
