The Lord showed George Harris and Susan Gregory that nothing is impossible with God. In this memoir, Susan Gregory shares the details of her family's journey serving the Lord through missionary work. In 1956, Harris-an aeronautical and mechanical engineer-left a successful government job to become a missionary. With his wife, Susan, and their three children in tow, they embarked on a seventeen-day boat journey to their first destination in Mato Grosso, Brazil, with the South American Indian Mission. During their years abroad, Harris and Susan added two children to their family while experiencing Indian fights, an appendicitis attack, epidemics, chronic disease, serious accidents, and AIDS. Harris earned a reputation as a "fixer" and used these skills as a missionary not only in Brazil, but in the Bahamas; Mexico; Miami, Florida; and El Paso, Texas. Communicated through a series of letters written during their service, "Trickle-Down Memory" narrates one family's commitment to serving others. It shows a vivid legacy of lives lived for God and underscores the notion that missionaries are called, while their children are drafted.