Hi Pat!
I checked the surnames you listed in one of my favourite Haldimand area books, "Haldimand County Marriage & Burial Registers 1851-1865" by Dan Walker & Robert W. Calder (published by NorSim Research and Publishing, Delhi, Ontario, 1995) and found the following entries:
p.11 David Bowman to Ann Eliz. Pinckett by Rev. Thom. Williams. Marriage registerred Jan.2, 1854.
p.40 Nathaniel James, 27, to Henrietta Picket, 16, by Rev. Philander Smith. Marriage registerred Jan.6, 1864.
p.43 Dennis Keeley, 26, to Sarah Jane Puckett, 26, by Rev. John P. Islip. Marriage registerred 23 Feb. 1864.
p.73 6 Jan. 1863, Ada James, 32, died of Child Birth 5 June 1862. Registerred by Rev. J. Goodman.
Perhaps even with the variant spellings, some of these people are fit somewhere in your research?