Thirsa Lewis was born in 1881 in Birmingham, Warwickshire.

Thirsa married Harry Ernest Lavender in 1903 in Wolverhampton, Staffordshire.

She had the following children from her marriage to Harry Ernest Lavender:

- Hilda Lavender	born on 19 December 1903.
- John Ernest (Jack) Lavender	born on 21 August 1905.
- Harry Ernest Lavender	born on 11 June 1907.
- Roland W. (Ron) Lavender	born on 14 October 1909.
- Edna (Eddie) Lavender	born on 25 June 1912.
- Ethel Angela Lavender	born on 5 July 1914.
- Thomas Norman Lavender	born on 15 July 1916.
- Robert Arthur Lavender	born on 3 October 1923.

Thirsa died when she was about 87 years old, around 1968.  

Census Data:

Year	Address
1911	224, Dunstall Road, Wolverhampton, Staffordshire.