Elders of Glengarnock Reading Room (Its not Kilbirnie Gospel Hall, but the same denomination in the same village):
I believe that left to write they are, John Montgomery Barclay, William Rabey, Charlie loughlin and John Peebles I have other pictures.
Theres also another picture enclosed of a Bible gifted to John M Barclay from Sam Warnock 1929 in Irvington New York. I have pictures of the cover etc too if you want to see it. Sam had immigrated there, Montgomery (as he was known) went there too but I know they didnt travel or live together so its likely he went to another part. I know they helped build up the Gospel Hall there. He became quite famous as a preacher, I am in contact with other members of his family if you want me to put you in touch.
He is mentioned here
http://www.plymouthbrethren.org/article/5989I see you also have "Hays" in your tree, me too from Ayrshire. Can we connect about that?
I believe this is also him
Name: John Barclay
Gender: Male
Birth Date: 25 Jul 1862
Birthplace: KILBIRNIE,AYR,SCOTLAND
Father's Name: James Barclay
Father's Birthplace:
Father's Age:
Mother's Name: Mary Mckenzie
Mother's Birthplace:
Mother's Age: