Joseph Mattsson made a visit to Sweden 1935 to marry Daga Adolphina Erlandson from Grava on August 13.
Together with his assistant pastor Andrew W. Rasmussen the church in Chicago became deeply involved in the Latter Rain revival.
He worked closely with William Branham during the Healing Revival of the mid-20th century, and served as his main source of publicity during the 1960s.
[9][10][11] References Malmström, Nils; "Han arbetar efter amerikanska metoder- Joseph Mattsson-Boze ett liv i skärningspunkten mellan amerikansk och svensk pingströrelse" in Alvarsson(ed) Varför reste Lewi Pethrus just till Chicago?
- relationerna mellan Sverige och USA inom ramen för pentekostalismen, Studia Pentecostalia Upsaliensis NR 4, Artos 2019.