[1] His father worked in Nagasaki as a missionary and educator for the Dutch Reformed Church.

[5] Following in his father's footsteps, Verbeck began teaching at the Saint Matthew's Hall, in San Mateo, California, where he taught for two years.

[1] He moved to St. John's Academy, where he became its president, serving there until he succeeded Nelson H. Henry as Adjutant General of New York.

[7] Verbeck led the National Scouts of America (NSA), running summer camps for boys at Camp Massawepie in conjunction with the Manlius School.

[11] They had three children: Guido Fridolin, Karl Heinrich Willem and William Jordan.