William Jacum was born around 1802.

William married Martha Lavender in 1823 in Kingswinford, Worcestershire.

He had the following children from his marriage to Martha Lavender:

- Sarah Jacum	born around 1825.
- Ann Jacum	born around 1829.
- Sarah Jacum	born around 1834.

William was a Builder.

William died when he was 65 years old, in 1867.  

He was buried in 1867 in Dudley, Worcestershire.