Jill
Do you mean how have I determined the existence of my Crosby Ravensworth wills? I had intermittent access to a book that listed all Diocese of Carlisle wills between 1650 and 1750 and wrote down the names of the testators, probate date and location of anyone from CR. Initially, I used that to request wills from Carlisle Record Office. But then I just started to ask about the existence of wills for a particular person based on their burial date.
I'm assuming that Kendal wills are held at Carlisle but I haven't checked that Kendal is in the Carlisle diocese.
Providing you restrict your request to a particular timeframe, place and surname I think you could probably ask about the existence of wills without incurring any charge. Why don't you email them and ask? I think they have a will database/spreadsheet (but not online) so that is not too onerous for them. Getting the photocopies would then cost money but it's a lot cheaper than travelling there. My last will request cost me £35 for copies of 22 wills. That seems like a bargain to me.
As to a2a I just typed Troughton names, or Troughton NEAR40 Kendal into the seach box. (You can also select NorthWest to reduce hits).
regards
Deborah