Frederick T. van Beuren Jr.

[6] He was a published clinician in peer-reviewed journals,[7][8][9][10] who often was invited to read the results of his clinical studies before many medical organizations and associations in the United States and Canada.

[15] Members of the corps created the national planning to assure that adequate medical services would be available during emergencies, including periods of war.

In this capacity, Captain van Beuren was invited to attend the semi-annual meeting of the Essex County Medical Society on June 5, 1917, in Elizabethtown, New York as a speaker presented during their Scientific Program.

[20][21] He was associate visiting surgeon at Presbyterian Hospital, where for twenty-four years, he conducted clinical research into surgical techniques and equipment.

He also was consulting surgeon at Elizabeth A. Horton Memorial Hospital at Middletown, New York, which now is known as Orange Regional Medical Center.

Many of his clinical studies were in the field of gastroenterological surgery, documenting the scientific data he gathered to advance medical knowledge about and to enable better diagnoses and choices of treatment for conditions that often resulted in the deaths of patients.

He is a descendant of Johannes van Beuren, who was born in Holland in 1678 and died in Manhattan in 1755,[28] a prominent and prosperous Dutch settler in New York.

The family had large tracts of land in Morris County that were supported by a farm on the parcel that measures several square miles.

[36] It has four stories that included a basement through which a brook ran for fresh water and had household servant quarters on the fourth floor.

Four other houses on the property served as living quarters for specialized and managerial staff members for the estate, stables, and farm.

At the age of thirty, on May 26, 1906, he married Jessica T. Mohlman[38] and after a "grand tour" honeymoon of Europe, they took up residence on Park Avenue relatively near to the home of his parents.

Eventually, they spent more time in New Vernon and, in 1933, when van Beuren became the president of Morristown Memorial Hospital, the house facing Spring Valley Road became their primary residence.