Hi KGarrad,
I searched a coulpe of years either side and nothing. I did question if they actually married, as proof would not be required. In making up a marriage, it needs to be before the first born. It must be a challenge for the person collecting, in entering large Gipsy encampments, or even asking individual families, as Daniel and Catherine were in several newspaper articles for fighting.
Some of the closed records of the 1939 Register, could be males continuing the Evans name, or even Cartherine W Evans. My great-grandparents Thomas and Martha Jane Williams, to my knowledge, had five children; Martha Jane (married Aran), Thomas (grandfather married Maggie Brown), John William (died WW1), Violet May (who I do not think married) and Elizabeth Florence. When Martha Jane Williams married Daniel Evans, her age would be around 47.
The marriage certificate of Daniel Evans and Martha Jane Williams
26 Nov 1917 . Register Office Carmarthen
Daniel Evans . 47 . Widower . Public Amusement Caterer . Van Carmarthen Park . Father: Edward Evans (Deceased) . Basket Maker
Martha Jane Williams . 46 . Widow . Fruiterer . Ivy Bush Inn, Market Street, Haverfordwest . Father: Thomas Richards . Railway Porter
Witnesses: J J Surnes and F E Rossason. [unsure of that name]
Regarding Catherine W Evans marriage Oct-Dec 1929 and registered in Swansea, I do not see how she is a daughter of Aran/Dan or John Evans, as the dates do not add up for her to be old enough to marry.
Aran and Martha Jane seem to have married and lived in Carmarthen, though by 1939 I do not know where he was living, aged around 45 years. Martha Jane though, is recorded as still being married. As for John, I do not know what happened to him. Daniel Evans may have fathered other children, if Martha Jane (wife number 2) died, but I cannot find for certain a death. In 1939, he is in the Living Van, parked at Carmarthen, with another woman and others, with their records closed.
If only those records could be opened.