@Lyle:
(I believe it is Rev Robert Sedgewick and that the writer transposed an L where an S should be).
If you look at the top entry in the snippet (Louis & Sophia) you will see that the scribe made little or no differentiation between an "L" and an "S". So it is Sedgewick. This kind of handwriting certainly makes things "interesting" years later...

I also see
Archibald for the 2nd witness.
But the first one?

Agree with horselydown re: not simply an "s" following the "g".
lancs-lassie: I aslo wondered about Cunningham, but he must have made a right hash of the spelling...

Do we have any other upper-case "C"s in the snippet? I have to admit that I have no idea what the names are in the first column, otherwise I might be able to answer my own question...
Also (and this is bugging me), it looks as though there are two dots above the word. The more I look, the more I see something like
Cunimorgie. I think it's time for a break...
My first try and I have a lot to learn but I'm very pleased to have got one right (possibly)
Barbara 
Careful! It gets addicitve and then you find yourself spending hours staring at a single letter on a 200-year-old document snippet...
