Andover-Harvard Theological Library nicely checked their ministerial files for me.
Edgar Halfacre served at
Brooklyn Universalist Church in Brooklyn, PA from 1917 to 1919
St. Paul's Universalist Church in Victor, New York from 1919 to 1920,
and Clayton Memorial Church in Newberry South Carolina from 1923 to 1929.
the 1933 and 1934 Universalist Church Year books do list him as living in Newberry, but not as preaching there.
Edgar Lee Halfacre (March 24, 1881-Nov 20, 1962)