The biplane was based on the Curtiss Carrier Pigeon, a purpose-built aircraft for airmail operations.

The Lark also had a longer-span lower wing, similar to the Carrier Pigeon.

Some models were converted to floatplane configuration with a central mounted pontoon and wing-mounted floats.

[6] Florida Airways operated a Curtiss Lark Miss Tallahassee on its CAM-10 U.S. airmail route between Miami and Atlanta.

[7] Colonial Air Transport owned a Curtiss Lark which was one of the first aircraft to be registered using the new Underwriters Laboratories all-letter system (1921 to 1923).