As persecution increased, Joseph Smith and his companions took refuge in the humble home of Peter and Mary Whitmer. During this respite the translation of the Book of Mormon was completed. While her husband and sons labored with the prophet, Mary shouldered the responsiblities of running the farm. While acknowledging the strain of caring for so many in such small quarters, she did not complain. Her willing sacrifice and quiet faith led to a powerful experience as Mary became the fourth witness to the Book of Mormon.