Emily Margaretta Roebling Cadwalader (died May 15, 1941) was an American socialite and philanthropist, based in Philadelphia.

[1] Her father was an engineer, president of John A. Roebling's Sons, a steel wire and cable company.

[2] Her Prussian-born grandfather, John Augustus Roebling, was best known as the civil engineer behind the Brooklyn Bridge.

[10] After marriage, Cadwalader lived part-time in Fort Washington, Pennsylvania, in a house known as Fairwold.

Fairwold was used as a convalescent hospital during World War I, while the Cadwaladers lived in their Philadelphia townhouse.

[3] The USS Sequoia became property of the United States government in 1931, and was used by presidents from Herbert Hoover to Gerald Ford.