No Charles Forest but the IGI has Isabella marrying James Forest:

IGI Individual Record ISABELLA CRAINE JAMES FORREST Marriage: 07 JAN 1847 Braddan, Isle Of Man, England
Extracted marriage record for locality listed in the record.
Batch No.: Dates: Source Call No.: Type: Printout Call No.: Type:
M038021 1683 - 1733 0106708 Film 6909378 Film