It might be worth noting that Francesco "Frank" Bellanca had been involved in the airplane industry for quite some time. He had helped his brother, Giuseppe Mario Bellanca, between 1911 and 1916, for example. By then, he was helping another of his brothers, Augusto Bellanca, one of the founders of a politically progressive union, the Amalgamated Clothing Workers of America. "Frank" Bellanca returned to the aviation industry in 1926. He played a role in Bellanca Aircraft pretty much from day one.
Between the fall of 1937 and the spring of 1938, "Frank" Bellanca considered the possibility of moving to Canada, possibly to Montreal, Quebec, to set up a factory that would supply the British and French air forces. Mind you, Toronto and Windsor, Ontario, were other possible locations. Windsor was deemed to be especially convenient, located at is was very close to the Canada-US border.
The airplane Bellanca seemingly considered producing first was a twin fuselage bomber whose two engines were mounted in tandem in a central nacelle. He also hoped to produce a single seat fighter, some sort of torpedo bomber / coast patrol aircraft and several other unknown types. The factory project soon came to naught.
The gentleman by the name of Miller who was involved in the founding, at least on paper, of the Canadian company Miller-Bellanca Aircraft of Montreal, around March-April 1938, was seemingly the American race car designer and builder Harold Arminius "Harry" Miller, a gentleman described as one of the greatest minds in the history of American automobile racing.
Miller was the brains behind the 1,000 hp (vee type?) liquid-cooled engines which were to power the bomber and fighter. He might also have designed other engines for the unknown types of aircraft. Whether or not any engine was actually put together is very much unclear.
By 1940, "Frank" Bellanca was proposing the production of an odd looking motor torpedo boat capable of exceeding 80 knots. (Please see photo) He looked at potential factory sites in Mobile, Alabama, and Biloxi, Mississippi. As well, Bellanca also considered the possibility of setting up an aircraft factory in Brownsville, Texas. Those project soon came to naught as well. By early 1941, the chosen site for the production of both aircraft and motor torpedo boats was New Bedford, Massachusetts. That project also came to naught.