Hi
One of the problems with the 1841 apart from some pages being very feint is that there is no name index,and as you say there are lots of them,and if you found them away from Ralf and Catherine you would not know if they were "right". I did think that if a marriage or death could be found for Margaret,which is not as common a name as Samuel or Thomas then it might be worth risking a certificate?
peterbennett