On 31 August 1843, H. King wrote a letter of introduction from , Iowa Territory, to JS in , Illinois, on behalf of a “Mr. Campfield,” who intended to travel to the city with friends from . H. King is likely Henry King, a resident of Keokuk, just fifteen miles south of Nauvoo and on the west bank of the , while Campfield was a visitor to Nauvoo. King had made JS’s acquaintance through the in Nauvoo. JS was initiated into the lodge in March 1842; King was one of the “visiting brethren” from across the river at that event. King also served in the territorial militia as a brigadier general. In mid-July 1843, he, in his military role, wrote to , the Iowa Territory governor, regarding the interactions of the Potawatomi and members, including JS.

Addressing JS as “Genl. Joseph Smith jr,” King introduced Campfield and thanked JS in advance for any kindness that he could show Campfield and the friends he might bring with him as they toured the city and surrounding country. The letter’s lack of postage suggests that Campfield or another courier carried the letter to JS in . The letter was received in Nauvoo and docketed and filed by JS’s clerk . No response from JS or record of Campfield’s visit has been located.