https://history.lds.org/missionary/individual/john-pack-1809
John Pack’s “mission letter” for his France mission. I don’t think they got formal mission calls, I think the purpose of this letter was to prove their credentials if anyone asked, similar to the small version of our mission call we kept in our “white handbook” when I served my mission. For the best copy of this document, which is signed by Brigham Young, Heber C. Kimball, and Willard Richards, click this link (below):