[4] Hopkins studied at the Ecole des Beaux Arts in Paris followed by several years in Rome completing his knowledge architecture, presumably in the early 1890s.

[6] Early in his career, Hopkins specialized in the design of farming complexes for the American capitalist during the Gilded Age.

Their collaboration, though not firmly documented during this time, probably resulted in several other farm projects associated with Hopkins New York, New Jersey, and Massachusetts.

[10] Hopkins farm groups appeared in Westchester County, New York, the Hudson River Valley, northern New Jersey, Illinois.

He preferred to remove hay storage from its traditional loft over the stables to eliminate dust infiltration and ammonia pollution.

[14] and his small book Planning for sunshine and fresh air: Being sundry discourses & excursions in the pleasant art of building homes, set forth in a manner and upon a theory ... how best to effect their proper economies appeared in 1931.

After an interim following his death, an architectural firm was founded in 1954 by six associates from his office, as La Pierre, Litchfield & Partners.