Born in Yonkers, New York, Abbott received a B.A. in landscape architecture from Cornell University and began his career in park design and land use planning with the Finger Lakes State Parks Commission and the Westchester County Parks Commission.
Allen maintained a landscape architectural practice based in New York City, designing residential gardens primarily in the New York and New England area.
David Arbegast, FASLA, earned a bachelor’s degree in Landscape Architecture from Iowa State University in 1950 and his master’s in that subject from the University of California, Berkeley in 1952.