On January 15, 1879, Coleman married Jennie Lillie Clarke (1853–1880) in
Hartford, Connecticut. She was the foster daughter of Mr. and Mrs. Lucius Barbour of Hartford, and the daughter of the late Sylvester Clarke who had been a clergyman in
New Haven Connecticut. On November 8, 1879, the couple sailed on a six-month trip to Europe where they planned on purchasing furnishings for Cornwall Hall. Her body was returned to Pennsylvania and entombed in the crypt underneath the altar at St. Luke’s in Lebanon, that was dedicated in her honor. Edith was an orphan from
Savannah, Georgia that Coleman's family adopted during the
Civil War. Other additions to the estate included greenhouses, dog kennels, a swimming pool, bowling alleys, and Coleman's workshop where he tinkered and ran model trains. This organ was said to be the finest work of its maker, the
Rosewalt Pipe Organ Company of New York. The auction catalog of 177 items gives insight to the art that once decorated the Coleman mansion; most items were chosen for him by art collector
James Jackson Jarves. Coleman built his home on top of the hill, to the rear of the regular set-back of the neighborhood. This seems to be confirmed by
The New York Times which mentions the New York Security and Trust Company assigning a mortgage to Robert H. Coleman, trustee, for $10,000 ($ in today's money). However he still had debts; that same year, Coleman's beloved pipe organ was sold to the Longswamp Reformed Church of
Mertztown, Pennsylvania at the bargain price of $1,200 ($ in today's money) by Coleman's assignees. In 1910, his 22-year-old son, Ralph, committed suicide, and Coleman became "almost a complete recluse" in his grief. Coleman opened a store that specialized in
Havana Cigars in Saranac Lake around 1912, with his son William who had recently returned home from
Trinity College, followed by travels out west. When the store failed, William stayed to help care for his father. As he became increasingly ill from tuberculosis, Coleman's sister Anne cared for him. Between 1912 and 1921, Coleman Cottage was the winter home and private commercial sanatorium of the Arthur Duncan Moir family. It is unclear if Coleman still occupied the cottage in summer or if he had permanently moved to his sister's home. Coleman slipped into a coma in 1930. He died three days later at Annie's home in
Hyde Park, New York. He was buried at
Laurel Hill Cemetery in Philadelphia with only his sister and children in attendance. == Honors ==