If you peruse this website,
http://www.islandregister.com/roberts1.html, you'll find a number of Flanagans, specifically the children of John Flanagan and Margaret Jane Roberts, mentioned in a previous post - I assume that a number of them would still be alive in 1900...
10. MARGARET JANE4 ROBERTS (JAMES3, PETER2, UNKNOWN1) was born 14 Apr 1826 in Heron Island NB, and died 11 Jul 1902 in Pine Ridge NB. She married JOHN FLANAGAN 26 Aug 1850 in Brown's Yard, Kent Co., NB, son of JOHN FLANAGAN and MARTHA UNKNOWN. He was born c1827 in Ireland, and died 31 Oct 1900.
Children of MARGARET ROBERTS and JOHN FLANAGAN are:
24. i. JAMES WILLIAM5 FLANAGAN, b. 15 Mar 1853.
ii. GEORGE HENRY FLANAGAN, b. 1854; d. 14 May 1926; m. CATHERINE (KATE) GILLIS
iii. JOHN FLANAGAN, b. 12 Sep 1855; d. c1858.
25. iv. MARY JANE FLANAGAN, b. 11 Aug 1856, Pine Ridge, NB; d. 14 Oct 1924, Upper Main River, NB.
26. v. JOHN HOWARD FLANAGAN, b. 15 Mar 1857; d. 14 Oct 1924.
vi. WILLIAM ROBERTS FLANAGAN, b. 17 Apr 1860; d. 02 Apr 1918, Maine; m. JUDITH CORMIER.
27. vii. ABRAHAM (ABE) HARRISON FLANAGAN, b. 02 Sep 1862.
28. viii. JOHN EDWARD (NED) FLANAGAN, b. 1864; d. 1962.
29. ix. ISAAC (IKE) DAVID FLANAGAN, b. 1865; d. 10 Mar 1936.
30. x. ANDREW (ANDER) FLANAGAN, b. 1865, Pine Ridge, NB; d. 21 Mar 1933, Pine Ridge, NB.
31. xi. EASTER (Esther?) ANN FLANAGAN, b. 29 Mar 1867.