 Hollins' wife, Evalina Knapp was the daughter of William Knapp, one of the subjects in Waldo and Jewett's painting, The Knapp Children, circa 1834.Evalina inherited the painting and in 1959, it was donated to the Metropolitan Museaum of Art in New York by the wife of Harry's and Evalina's son, John Knapp Hollins, in John's memory.In 2016, amateur East Islip historian Steven Cymbalski had been reviewing a late 19th century photograph of the Hollins family as seated in the dining room of their East Islip mansion and noticed a painting hanging on the wall in the background; further inspection revealed it was Waldo and Jewett's "The Knapp Children".