Samuel Dugan, Jr. was born in Belfast, Northern Ireland, September 4, 1849. He died in Roslyn, January 24, 1921, and is buried in the Roslyn Cemetery (obit., Roslyn News January 27, 1921). He was brought to Roslyn when he was 1 1/2 years old and spent his early years in his father's house at 148 Main Street. This house, the Samuel Dugan I house, was exhibited on the Landmark Society's Tours in 1966-67 and 1978-79. In his mid-twenties he married Cornelia Bond, who had been born in 1857 in the early part of the Kirby-Sammis House (TG 1986). Three sons were born of this marriage; Arthur, Rudolph, born January 8,1879, who died about 1960, and Roderick (b. March 13, 1891—d. May 28, 1970) who has been mentioned above.

Shortly after his marriage Samuel Dugan, Jr. built a small house on Roslyn Road, near the present Roslyn High School. He sold this house, which still stands, to a man named Hickson, on March 31st, 1888. No mention of this house appears in Samuel Dugan, Jr.'s ledgers, which are described below. In view of his usual meticulous accounting, the omission seems highly unusual and may be an error. In any event, on March 7, 1888, he bought the house which is the subject of this article from Washington Losee, who lived in the Valentine-Losee House (TG 1976). Squire Losee and his father, James Losee, before him, were extensive landholders in Roslyn and owned considerable property along the east side of East Broadway. The houseSamuel Dugan, Jr. bought is shown on the Walling Map (1859) as belonging to "J. Losee" and on the Beers-Comstock Map (1873) as belonging to "W. Losee." Young Sam Dugan was trained as a carpenter and builder and went into business for himself in 1879, when he was 30 years old.