Something must have been in the wind last week.I was also researching old New York City directories last week, and I can say a few things about the individuals mentioned, especially in combination with some other directories.
Regarding John and Jane Flandreau, my earliest directory entry is Dogget's NYC Directory of 1842-3, which lists Jane as John's widow and residing on 195 Ninth.In 1847-8 and 1848-9 Dogget's directories she is residing at 210 Av 3.She's at 212 Avenue 3 in Rode's NYC Directory of 1850-1, and likewise in Trow's 1852-3 directory, where I first see her listed as a seamstress.In all her entries she mentions that she is the widow of John.
The aforementioned James M. Flandreau is likely John and Jane's son, as a Jane Flandreau, aged 63, appears in James census entry for 1860:
Census of 1860, 12 Ward, 3rd District of New York, New York County, New York lists (in dewlling 16, family 17):
James M. Flandreau, 40, Male, Policeman, $500 in real estate, b. New York
Martha A. Flandreau, 22, Female, b. Connecticut
William C. Flandreau, 10, Male, b. New York
Emma C. Flandreau, 3, Female, b. Connecticut
Jane Flandreau, 63, Female, b. New York
James makes frequent appearances in references of the period, and even warranted an obituary in the New York Times:
30 Jan 1877, Page 8, Col 1:
DEATH OF AN OLD POLICE SERGEANT
Police Sergt. James M. Flandreau, of the Thirty-second Precinct, died at an early hour yesterday morning at his residence, No. 100 West One Hundred and Fiftieth street, after a long illness.He was 50 years of age, and had been connected with the Police for upward of 20 years.He was a Lieutenant of Police under Capt. [now Inspector] Speight, in the Twenty-first Ward, in 1854.When the late Sidney H. Stuart was elected City Judge, Flandreau was elected a Police Justice to serve the balance of Stuart’s term, and presided at the Jefferson Market Police Court during 1857 and 1858.In 1860 he was reappointed a policeman, and detailed at the East Twenty-third Street Ferry.He was subsequently promoted to be Sergeant, and was transferred to Yonkers, which at the time was included in the Metropolitan Police District.He was acting Captain there for several years.When Westchester County was exempted from the provisions of the Metropolitan act, Sergt. Flandreau returned to the Thirty-second Precinct, and remained there to the time of his death.
James appears in other references as a policeman, a justice, and a lawyer.He played a part in policing the draft riots during the Civil War, and there is some reference to him on pp 99-100 of David Barnes: “The draft riots in New York, July, 1863”.
As to David Flandreau, he and his wife Emma both made appearances in the directories I examined.David listed himself as a sashmaker and blindsmaker, and later as simply a carpenter.Let me know if you'd be interested in the addresses.
After his death, Emma lists herself as his widow for a few years, presumably until her marriage to Vreeland.(I found their entry in the 1870 census; let me know if it would be of any interest -- it was entirely consistent with information you've provided on them before, and told nothing new that I recall.)
I'll comment more on Elijah and family, and other implications of the directories in a forthcoming note.