Hello Ann
I have spoken to a lady who grew up in this area in the 1920s/1930s and she remembers Bwlch y Groes, which she describes as "a small cottage with 2 rooms at the front, and outbuildings away from the cottage; with about 2 or 3 small fields (a small holding). She told me that religious meetings were held at Bwlch y Groes before the old Chapel was built. In 1920s the Minister was G. Brynmor Thomas and she was Christened by him.
Having heard about the Chapel connection I looked at Genuki and found this article:
http://www.genuki.org.uk/big/wal/CMN/Hanes13.html#MILOIt mentions Phillip Evans, Bwlchygroes, as a member who took a prominent role in the foundation of the cause there. He was one of the first Deacons at the Welsh Independent Chapel at Milo. Morgan Evans, Bwlch y Groes was also a Deacon.
Perhaps your Phillip Rees is connected; it seems likely, doesn't it?
Herbert Rees, Bwlch y Groes, was a Deacon there in 1925.
Modified - G. Brynmor Thomas wrote a history of the Chapel "Llwybrau Llafur: hanes eglwys annibynnol Milo, Llanfihangel Aberbythych 1828-1968" which is available at Carmarthen Archives or National Library of Wales.
Kindest regards
Morgan
