Dragon T,
I know this thread dates back a while but can you remember anything about the Rowlands family of Elizabeth? In particular where she was born and where her father John lived when Elizabeth was married.
I think in 1841 Elizabeth as recorded as Rowland with John as father.(ref: HO107/1358/6/28 p3 Llanfaelog, Anglesey)
I'm afraid it is not a question of remembering, but it seems to me that Mike has correctly identified Elizabeth living at Glan y gors, Llanfaelog in 1841 with father John, mother Grace and brother David. There is supporting evidence in the names William (father William Jerman, mother Mary) and Elizabeth gave their first four children - namely: William (1861), John (1863), Alice (1864), Mary (1866). There was also a David (1875).
Elizabeth the daughter of John Rowland, labourer, and Alice of Glan y gors was baptized at Llanfaelog 17 Apr 1836.
Alice Rowlands, Elizabeth's mother, died aged 50 on 13 Mar 1843 at Llainydelyn, Llanfaelog. She was described as the wife of labourer John Rowlands who was the informant.
I haven't been able to locate John Rowlands after this date with any confidence.