Hi,
I found these children on the IGI,
Sarah PIKE
Christening: 24 FEB 1820
Charles PIKE
Christening: 17 MAY 1823
John PIKE
Christening: 24 DEC 1825
Holy Trinity, Frome, Somerset
Father: Charles PIKE
Mother: Dinah
I also found the above children and Elisha and Fanny at freereg,
http://freereg.rootsweb.com/cgi/Search.plI also found this marriage on the freereg site,
Charles PIKE
Dinnis BROWNING
Marriage Date: 16 Aug 1819
Church: St John, Frome, Somerset
Register Number: 680
Witnesses: Wm PIKE & Wm CHUBB
Maybe someone can look at the original to see if Dinnis could be Dinah

Regards
Daisy