The W. P. Haines Piano Company (not to be confused with Haines Brothers) was established in 1898 in New York by William P. Haines. The firm is first listed at 138th Street & Walton Avenue, New York City. The firm was incorporated in 1910 by T. Linton Floyd-Jones, the grandson of W. P. Haines. The W. P. Haines Piano Company built a full line of upright pianos, baby grand pianos and player pianos, and their instruments were known for being of very good quality, and the firm was very successful.

The W. P. Haines factory was capable of high volume manufacturing, and they actually manufactured pianos to the specifications of several other firms during the early 20th Century. In addition to pianos sold under the “W. P. Haines” brand name, the firm built instruments for “The Bradbury Piano Company” and “The Webster Piano Company”.  “W. P. Haines” also built a line of very high quality pianos for “Robert Loud“, a prominent retailer and piano dealer in Buffalo, New York during the ‘teens and ‘twenties. After the Great Depression, the firm was absorbed into the large “Winter Piano Company of New York“.  Winter continued building pianos under the “W. P. Haines” brand name until about 1950.