1854 his wife Sarah died in the Workhouse 16.5.1854 and was buried in St.Pancreas Chapel.
That lady was the wife of a Charles, but the wrong one I think. Husband said to be a Glazier. Two daughters Emily and Clara.
Clara died in the workhouse, June 1854.
Emily seems to be with her paternal grandfather William in 1861
"Sarah" was usually known as
Susan, and likely was admitted to Pancras workhouse as Susan Witney, age 30, on 30 April 1854.
See Pancras rough settlement exams, Clara Maria Whitney, 1854

Says mother Susan Whitney died in Pancras workhouse.
Clara was baptized in Pancras, 16 Oct 1853 (online)