1927: Walter Barling, as engineer with Nicholas-Beazley Airplane Co,
Marshall MO.
USA

1930: Barling Aircraft Co,
526 North 2nd St,
St Joseph MO.
USA

1931: (Archibald S) Barkley & Warwick Aircraft Corp,
7490 Melville St,
Detroit MI.
USA

1937: Barkley-Grow Aircraft Co

Escalon CA.
USA

110 N Cypress St,
Burbank CA.
USA

Built the Barnes BGX-1 in 1933

Bloomington IL.
USA

Built a monoplane in 1933

(Joseph) Baltrun Flying Service
Springfield MA.
USA

Built the Baltrun 1931 biplane

(W J) Ballou-(Walter L) Whitehair Aeroplane Co
Portland OR.
USA

In 1929 built an aircraft of some kind.

Bettis Field,
McKeesport PA.
USA

Built the Ball S-T in 1928.