 Later he served as rector of St Paul's Church in Bristol, Pennsylvania in 1900 and then became professor of church history and church training in 1904, a post he retained till 1911.Garland was elected Suffragan Bishop of Pennsylvania in 1919 and was consecrated on October 28, 1911 by Presiding Bishop Daniel S. Tuttle.He was elected as diocesan bishop on January 4, 1924.