After six months of service, Ladd transferred to Cornell University of military aeronautics.

He graduated in 1918 from Cornell and then transferred to Camp Dick, Dallas, Texas.

In 1925 Ladd was appointed major and commander of the 118th Observation Squadron 43rd Division Aviation.

Ladd for several years occupied a position as deputy tax commissioner.

Ladd memberships were National Aeronautic Association, Hartford Lodge No.