This may be the correct family but it looks as though there may not be a marriage.
There are relevant deaths in Surrey - does that make sense?
Currently nothing make sense! The DNA match is around a 2nd cousin to the lady I am helping. She is also around a 2nd cousin match to a shared match. Neither of the matches have a tree and the other shared matches are in the 20cM area so not much to go on there.
She has a match who must be either a 1st cousin or a half niece. We have ascertained the link is via this match's paternal line, but his name is Smith so progress is slow. There is a very strong connection to the name Traynor from Edenderry and then there is another connection to the name Ryan but I can't get back far enough yet to see where from. There is also a possible link to Hughes. The Leeds method threw no light on the matches at all - so I think there may be some endogamy.
The Richard Lalor Power born 1935 married in Luton in 1958. I think we will have to buy the marriage certificate so we can get a father's name if we are going to progress this line! See if it's Algernon

I've found the tree you mentioned, thank you!