Kate married Rufus William HARMER on 22 Dec 1898 in the parish church of Sheringham in Norfolk. The marriage certificate shows Kate COUCHMAN, 46 year-old widow, resident in Sheringham, daughter of William James COUCHMAN, soldier. Rufus was a 46 year-old widower, a labourer, resident in Sheringham, son of Thomas Harmer, labourer. Witnesses were Charles HARMER and Elizabeth HARMER. Registration district was Erpingham. Elizabeth was probably the sister of Rufus.

1901 census for Sheringham, Norfolk , in Upper Sheringham:
Rufus Harmer, head, 50, Ordinary Agricultural Labourer, b Sheringham, Norfolk ;
Kate Harmer, his wife, 48, b India;
Kathleen Harmer, daughter, 7, b Hoxton, London 33

Kate Harmer died on 23 Apr 1913 at 56 Hume Street, Warrington, aged 61, of cardiac disease which she’d had for two years. The informant was her widower Rufus William Harmer, a carter for a contractor. His residence was 56 Hume Street, Warrington and he was present at her death. 98