Nicolas Bashford was a client of the Manhattan Dollhouse, and was able to recognize that "Julia" was in fact, an Active with the imprinted personality of his deceased mother, Margaret Bashford. (S1: "Haunted")
The Manhattan Dollhouse is the first Dollhouse facility other than the L.A. Dollhouse to be referenced to, but was not seen onscreen. On a promotional website for the Rossum Corporation, Manhattan was not explicitly mentioned to be the location of a Rossum office, but instead "New York City" was used. The pages name comes from a mention of Manhattan itself, and Topher Brinks use of "D.C. Dollhouse" during "The Hollow Men"