[1][2] He designed the St. Regis New York, the Hayden Planetarium, and numerous buildings listed on the National Register of Historic Places.

[1] He was the son of Susan Maria Clarkson de Peyster (1823 – 1910) and Robert Edward Livingston (1820 – 1889), who inherited wealth and did not work.

[5] His paternal great-grandfather, Philip R. Livingston, was a signatory of the Declaration of Independence and member of the first Continental Congress.

[9] Trowbridge & Livingston became known for its commercial, institutional, and public buildings, many in Beaux Arts or Neoclassical architectural styles.

[10][11] Often commissioned by well-heeled clients, the firm's work was especially prevalent in the Upper East Side and Wall Street precincts of New York City.

[10] In Pittsburgh, Pennsylvania, he designed the United States Post Office & Courthouse (aka the Joseph F. Weis, Jr. U.S.

[1] Livingston married Louisa Robb (1877 – 1960) on April 8, 1896, at St. George’s Episcopal Church in New York City.

[11] Livingston designed their Georgian Revival mansion "Old Trees" with gardens, stables, and service buildings.

[11] At Old Trees, the family had a butler, gardeners, maids, and other servants to allow them to entertain high society and maintain the large estate.