People United States of America Henry Ketchum Averill Jr. peoplepill id: henry-ketchum-averill-jrHKAJ 1 views today 1 views this weekAmerican surveyor and photographerHenry Ketchum Averill Jr.BiographyListsAlso ViewedSimilar peoplePeople also viewedCharles Sanders PeirceAmerican philosopher, logician, mathematician, and scientistH. W. HopkinsAmerican civil engineer and cartographerOrmando W. GrayAmerican map and atlas publisherFrom our partnersSponsoredHenry Ketchum Averill Jr.
