Old Salem Lutheran Church records are archived in historical museum in Weddish Museum in Serbin, TX. I have some of the records, birth, confirm. death etc. They can be very difficult to read.
According to "Fayette County; Past & Present" p. 144
"The Philadelphia Evangel. Lutheran Church has had fourteen pastors. On May 1967, a merger took place between the Trinity Evangel Lutheran Church, Black Jack Springs, The SALEM EVANGEL LUTHERAN Church, Swiss Alp. The new congregation is now called the United Evangel. Lutheran Church, Swiss Alp."