George G. Frelinghuysen, a patent attorney and son of Frederick T. Frelinghuysen, Secretary of State under president Chester A. Arthur, was married in 1881 to Sara Ballantine of Newark. She was the granddaughter of the founder of the P. Ballantine Brewing Company. In 1891 the couple commissioned the Boston architectural firm of Rotch and Tilden to construct a summer home and carriage house on property they named Whippany Farm for the river nearby.
This property was left to their only daughter, Matilda (1887-1969). Miss Frelinghuysen had an interest in gardening and was a member of the Garden Club of Morristown. Upon her death the land and house was bequeathed to the people of Morris County for the use as a public arboretum. The Frelinghuysen Arboretum was dedicated in 1971.
For more information visit the Morris County Park Commission website athttp://www.morrisparks.net/aspparks/frelarbmain.asp