The third marriage register image that Susan Keefe kindly provided was for:
John Pask and Isabell[a] Gollan, who married on 30 April 1840 in St. Pancras Parish Church.
I subsequently found them in the 1841 census living with the infant daughter Isabella, in Prospect Terrace, St. Pancras. They were enumerated under the name of Parsk, and incorrectly transcribed as Pank. This has now been corrected in Ancestry. Also listed in the 1841 census was probably Isabella's mother Sarah Gollan.
John at the time of his marriage to Isabella, was listed as a Widower. However I am unable to establish who he was married to previously. This family is well researched, with information previously provided by Greg Theophandies, and Colleen Morrison.
The database has been updated, and this information will be included in the next website update. Thanks to Susan for providing the marriage record.