C. P. H. Gilbert
Charles Pierrepont Henry Gilbert ( August 29 , 1861 in New York City – October 25 , 1952 ) , most often referred to as C . P . H . Gilbert , was an American architect of the late-19th and early-20th centuries best known for designing townhouses and mansions . 
<triplet> C. P. H. Gilbert <subj> August 29, 1861 <obj> date of birth <subj> October 25, 1952 <obj> date of death