Isaac Lack was the son of Edwin Lack and Sarah Ann Lavender.

Isaac was born around 1874 in Wolverhampton, Staffordshire.

He was christened on Sunday 6 December 1874 at St John's Church, Wolverhampton, Staffordshire.

Details of Isaac's occupation are not known.

Isaac died in 1875.  

He was buried on Wednesday 3 November 1875 in Wolverhampton, Staffordshire.