Series II. Family correspondence

Family members include Hendrik's immediate family of parents, aunts, uncles, and two sons, and Eliza Bowditch van Loon's parents, her siblings, and cousins. Also postcards to and from family members. Major correspondence of ten or more letters between those friends with whom Hendrik maintained a regular correspondence is included in this series. Also included is correspondence between his second wife, Helen Criswell van Loon, and his third wife, Frances... Ames Goodrich. This material is listed alphabetically by correspondent and arranged chronologically.