Roehrig was born in LeRoy, New York, the son of the noted "orientalist and philoligist," Frederick L.O.

[1] He graduated from Cornell University in 1883 and also studied architecture in England and France.

[2] Roehrig is particularly known for his many landmark buildings in Pasadena, California, including the Hotel Green, and Pasadena Heritage has occasionally conducted tours of Roehrig's buildings.

[2][3] Roehrig's notable works include: Other buildings designed by Roehrig include First Presbyterian Church of Pasadena, Pasadena Hospital, Alhambra Library, the power house of the Los Angeles Aqueduct,[1] W.H.

Bartlett Estate in Montecito,[15] and the Andrew McNally House in Altadena.