Newspaper articles show this plane as being a design and partial assembly of Robert L Hall of the Granville Brothers Co, then was completed by students at the Baltrun flight school and apparently flown, piloted by Tony Israelian.

A two-place open cockpit biplane, registered N13230, it was powered by a 60hp LeBlond engine.

It was destroyed in a fire along with several other planes at the airport in 1932.

Looking a bit like a compact Waco UPF, it apparently influenced the subsequent Hall Bulldog also constructed by this same group.

The Ball S-T two-place open cockpit biplane was built by Clifford Ball, Bettis Field, McKeesport PA., in 1928.

Only one was built, registered N826E c/n 1, it was sold on 3 November 1930 to Pennsylvania Air Lines as a student trainer. The registration expired on 5 December 1932.

Engine: Velie M-5, later Lambert
Seats: 2

The 1921 Baco Skylark two-place first flew on 2 May 1921. Fitted with I-struts, it was price at $6,500.

The 1921 Baco Skylark four-place was priced at $7,000.

Skylark two-place
Engine: 60hp Lawrance
Wingspan: 29’10”
Length: 23’0″
Useful load: 600 lb
Max speed: 90 mph
Stall: 33 mph
Range: 350 mi
Seats: 2

Skylark four-place
Engine: 100hp Anzani
Wingspan: 36’0″
Length: 25’0″
Useful load: 950 lb
Max speed: 90 mph
Stall: 38 mph
Range: 350 mi
Seats: 4

The 1921 Bach Polar Bear two-place was built Built by Morton Bach in his backyard with design help from Clarence Prest. Used for an attempted flight from Mexico to Siberia, which ended short in northwest Canada.