There are a number of exhibitors with the surname Parker in show reports in the early years of the Society from 1838 to 1881, Isaac Parker, J Parker, John Parker and Thomas Parker. Thomas Parker bred tulips which continued to be grown and shown well into the 20th Century and mention is made of a flower named ‘Thomas Parker’ though whether or not it was of his own raising is not known.
On one sheet of the 1841 Census for Warrengate, Wakefield (Class: HO107; Piece: 1272; Book: 4; Civil Parish: Wakefield; County: Yorkshire; Enumeration District: 8; Folio: 27; Page: 4; Line: 15; GSU roll: 464242) where virtually all the residents appear to be cordwainers there are three families of Parkers. Listed are Isaac (aged 50), John (30), Thomas (25) and James (25) who almost certainly are among those members of the Society.