One of those things ...

I have a brain like a sieve. Back in the day - when I was researching my master's thesis - I found a statement telling how many former clergymen associated with the Allegheny congregation. As I recall it was something like 127 or 125 or in that neighborhood. I didn't make a note of it, but remembered it. Now I need the exact quotation. I can't remember where I read it. Does this sound familiar to anyone? Know where I read this?