Hi
You will find the Jeffs on the 1891 census living in tents on Redhill Common in Hampshire, besides Walter & Eliza there are six children, Jane, Job, John, Amelane, Edith & St Clement.
Walter died aged 82yrs and Eliza died aged 81yrs, they are both buried in the parish of Longfleet in Dorset.
On Walter & Eliza's marriage certificate Walter's surname is JEFFS and his father is also on there as Matthew JEFFS, they married in the parish of Moordown on the 21st March 1887.
Edith Louisa Jeff married William Henry James, she was born in 1868 and she died in the Nevi Wesh in 1968.
St Clement Jeff was also known as Andrew Ayres, he married Minnie Smith in Toddington, Bedfordshire on the 6th March 1911, they had three daughters, Doris Louisa Ayres, Patience Maud Ayres & Ivy Ayres, Andrew died on the 19th June 1919 of TB.
I hope this info is of some help to you.

Kind Regards