here we go -I have a theory!!!!!!!!!!!
I have found an Aaron Cooper -who fits the bill -hereford/Radnor Wales /Ludlow connections -father James-died between 1871-81 (haven't looked his birth up yet) but......
this Aaron -only one I can find in England/Wales who "fits" was b. abt 1860 -which would make him 39 at marriage
It's very possible the marriage cert has been mistranscribed at some stage - I have come across a 9 being transcribed as 5 (and vice versa) on quite a few occasions (even on FreeBMD-volume page nos)
My grandfather was 36 when he married but the cert has been mistranscribed as 30 (similar problem with 6 & 0)
I have this family from 1851-1891 - but Aaron is not at home after 1871-will search for him again.
What was his occupation on the marriage cert???
and was he a bachelor???
and would you like the census I have found -I have a really good feeling about them -but it's up to you to decide?