House Flags of U.S. Shipping Companies: M

Josiah Macy & Son

  image by Joe McMillan

Josiah Macy & Son, New York
Like the others from this source, a mid-19th century firm. I believe, but am not sure, that the Macys of this company were related in some way to the W. H. Macy who founded the big New York department store. The flag is interesting in that it is identical to the modern ICS signal flag for the letter "A."
Source:  chart of "Private Signals of the Merchants of New York"

Joe McMillan, 26 October 2001

Maine Steamship Co (Portland Line)

  image by Joe McMillan

Maine Steamship Co (Portland Line), Portland, Maine <us~messc.gif> (Source: 1909 supplement to [ruh05])
A coastal line serving the northeastern U.S. IIRC, this was one of the companies that was consolidated into the Eastern Steamship Company. The flag was just a white P on red.
1909 update to Flaggenbuch 1905

Joe McMillan, 26 October 2001

Mallory Line (New York & Texas Steamship Co.)

  image by Joe McMillan

Mallory Line (New York & Texas Steamship Co.), New York (1866-1932)
One of the old family-owned lines in the coastwise trade. As its formal name suggests, the line connected New York with Galveston, Texas, and later expanded with routes to New Orleans, Havana, and Mobile. The company was bought by Charles Morse's short-lived Consolidated Steamship Lines, then was transferred after Morse went bankrupt to the Atlantic, Gulf and West Indies (AGWI) SS Co. AGWI continued to provide service under the Mallory name and flag until 1932, when it combined Mallory's routes with those of the old Clyde Line (also an AGWI subsidiary) under the name of the Clyde-Mallory Line. The flag was a vertical tricolor burgee, white, red, and blue, with a red star in the hoist. As late as 1972, Lloyd's Register of American Yachts showed variations of this flag in use as private signals by Mallory descendants: WBR with blue star i