[3] On January 12, 1869, he was admitted to membership in the New York Stock Exchange,[5] serving on the governing committee (since 1876) and later becoming its vice president.

[3] Sturgis testified before the Pujo Committee in the U.S. House of Representatives,[6] set up to investigate the so-called "money trust" and, reportedly, gave "quick and incisive replies to the severe examination of Samuel Untermyer".

[1] In 1914, Sturgis, who was known as "the Beau Brummel of his day", was honored with a resolution from its members praising his record of service and expressing their gratitude for his part in expanding the Exchange and upgrading its standards.

The Exchange at that time was a local institution dealing mainly in American railroad securities and had not yet developed into the great world market of today.

In those earlier years, when the foundations were being laid for the present international market in New York, Mr. Sturgis was a conspicuous leader both as president and as governor of the Exchange.

He was a member of the Board of Directors of the Coney Island Jockey Club, operators of the Sheepshead Bay Race Track.

[13] Florence and Frank, who did not have any children together,[4] resided at 17 East 51st Street in New York, a classical townhouse designed in 1905 by prominent architect Ogden Codman, Jr., another cousin of Sturgis.

[4] The townhouse was built of limestone, with giant fluted pilasters, and was similar to a house designed by Robert Adam at 20 St James's Square in London.

[15][16] The home was originally built in 1870 in the village, but was moved to Kemble Street in 1893, shortly before the Sturgis' bought it in 1894 and had it enlarged into a colonial revival mansion.

[1] In his will, he left $55,000 in cash bequests to four public institutions, $1,300,000 to his relatives, and the residue of his multi-million dollar estate to the Winifred Masterson Burke Relief Foundation.