Long, Lamoreaux & Long was an architectural partnership in Minneapolis, Minnesota, of Franklin B.
Long (1842–1912), Lowell A. Lamoreaux (December 23, 1861 – February 1, 1922), and Franklin's son Louis L. Long (c. 1870–1925).
A number of Lamoreaux's, Louis Long's and the firm's works are listed on the National Register of Historic Places.
[3] Works individually by Lamoreaux, by Louis Long, or by the firm include (with attribution):
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