Son of Samuel L. Abbot Jr. (1792-1843) and Matilda Campbell (1797-1879).
Grandson of Samuel L. Abbot Sr. (1763-1856) and 1st wife Naomi Whiting (1765-1805). Some family trees say Samuel Lloyd Abbot and others say Samuel Leonard Abbot.

Distant cousin of Gen. Julian Whiting of Mobile.
29 Oct 1851: He married at Roxbury, Mass. Anna Lewis Blake who died at Boston in 1853 leaving a son J.L. Abbot Jr., one-year of age.
22 Jun 1856: He married his second wife Mrs. Carolina Barney, Mobile, Alabama. She was an aunt of Alva Vanderbilt.
His first wife was a great-granddaughter of Samuel Parkman (1751-1824), a noted citizen and benefactor of Boston who commissioned works of art from Gilbert Stuart, John Trumbull, Paul Revere and other great artists of the day. Gilbert Stuart painted portraits of the Parkmans as well as multiple portraits of George Washington, as did Trumbull. Parkman also commissioned a bronze church bell from Paul Revere. Mrs. Abbot's grand-uncle George Parkman (1790-1849) was controller of the $5 million Parkman fortune, gave the land for Harvard University and Harvard Medical School. In 1849 he was murdered by a Harvard Medical School physician who dismembered his body. Lurid, gruesome details of the horrific murder rocked Boston society and so disturbed Mrs. Parkman that she never again left her home on Beacon Hill; nor did her children ever married (Blood & Ivy: The 1849 Murder that Scandalized Harvard by Paul Collins).

Mobile Protestant Orphan Asylum Minutes:
p. 77: FEBRUARY 2ND, 1857
Donation of twenty-five dollars from Mrs. J.L. Abbot.

J.L. Abbot and second wife Caroline are shown in both Mobile and Baltimore in 1860.
1860 census, Mobile, Mobile Co., AL.:
J Lloyd Abbot 35 MA
Caroline Abbot 32 TN
James Abbot 5 MA
Hindman Barney 11
Robert Barney 9 AL
Caroline Barney 7 AL (Bessie)
James S Moreland 28 AL

1860 census, Baltimore Co., Md: (3 September 1860)
James L. Abbott (sic) 32 Mass
Caroline Abbot 28 TN (1832)
Hindman B Abbott 11 AL
Robert Abbott 9 AL
Bertha Abbott 8 AL female (Bessie Caroline)
James L Abbott 8 Mass
Henry Abbott 2 AL
Margaret Pariner 40
Margaret Cathcart 22
Margaret Thomas 27
Caroline Thomas 34

Boston (Mass.) Daily Advertiser, Feb. 2, 1867, p. 3:
"HENRY W. ABBOT,
21 Central Wharf…….Boston,
Commission Merchant, Agent for
J.L. ABBOT & CO.,
Cotton Buyers,
MOBILE, ALA."

Mobile Register, Oct. 26, 1868 p3: "INDIA BAGGING.
300 bales India Bagging, extra weight, for wale in quantities to suit purchasers.
J.L. ABBOT & CO.,
26 St. Michael street."

Mobile Register, Feb. 17, 1869, p.2: "DISSOLUTION.
J.L. ABBOT retired this day from the firm of J.L. ABBOT & CO. The business will be continued by Mr. JAMES S. MORELAND, under his own name, who will attend to the settlement of the affairs of the late firm.
feb 17 3t J.L. ABBOT & CO."

NY Herald, Friday, March 11, 1870, p.6: "Died.
ABBOT.--On Tuesday, March 8, BESSIE BARNEY, only daughter of James Lloyd and Caroline D. Abbot.
Mobile and Baltimore Papers please copy."

The family is also listed twice in the 1870 census in New York.
1870 NYC NY, p. 64: 23 Dec 1870
5th Ave. bet. Washington Sq and Clinton Pl.
Abbott, James L 43 m cotton broker
" ", Caroline D. 39 f TN
" ", Henry S. 12 m AL
Barney, Robt. H. 20 m do.
Hartman 22 m do.
Cooke, Amelia 50 f c servant Georgia
Gideon, Caleb 18 m c waiter do.
McCool, Delia 30 f (w) servant Ireland
Donahue, Rose 20 f (w) do. do
Mulligan, Susan 25 f do do
Vandervoort, Mary S. 55 f Lady

1870 NY NY: page 87, 27 July 1870
James L Abbott 43 MA
Clara L Abbott 39 TN
Heineman B Abbott 21 AL (Barney)
Robert Abbott 19 AL (Barney)
James L Abbott 18 AL
Henry Abbott 12 AL
Dilton McCool 20 f w Ireland servant
Rosa Donohue 29 f w Ireland servant
Emeline Dennis 50 f b Maryland servant
Dubois Keleb 23 m b Maryland servant

NY Herald, Sunday, June 25, 1876, p.10: "DIED.
ABBOT.--At Seabright, June 24, 1876, of consumption, CAROLINE DESHA, wife of J. Lloyd Abbot and daughter of the late General Robert Desha, of Mobile, Ala.
Boston and Mobile papers please copy."

1850 Mobile, AL
H Barney 39 Maryland (1811) merchant
Caroline Barney 23 TN
H Barney 2 AL (Hindman)
R D Barney 0 (Robert)
Mary Oconner 14
Theodore Gordon 30

Caroline Lula Desha
Born 4 Mar 1828 in Sumner County, Tennessee
Died 25 Jun 1876 in Seabright, Monmouth County, New Jersey.
She was the daughter of Gen. Robert Desha, U.S. Congressman from Tennessee, and first wife Eleanor (Shelby) Desha.

March 15, 1847: Caroline Desha married John Hindman Barney in Mobile County, AL.
Hindman Barney b.1811 Maryland d. 5 Sep 1853 in Mobile, AL.

Caroline Desha Abbot was an actress.

Notable Southern Families by Zella Armstrong, vol. 2, p. 323: "Caroline Desha, daughter of General Robert and Nellie (Shelby) Desha, married first, Robert Barney; second, Lloyd Abbott (sic)." Her sister "Phoebe Ann Desha…married first…[Dr. Murray Forbes Smith]" and was the mother of Alva Smith Vanderbilt Belmont of Mobile, wife of William K. Vanderbilt, the grandson of Cornelius Vanderbilt whose second wife was Miss Frank Crawford of Mobile.

Marker not found.

The Genealogical Helper, Volume 30 (1976), p. 494:
Mrs. Griffith Evans Royea, Glebe Road, Westmoreland, NH 03467 (researching): "Samuel Abbot, Boston, Mass., d 1769, wife Elizabeth Marston. (son) Samuel Abbot, b Boston, Mass 1765, wife Naomi Whiting, grandson Charles Fredrick Abbot, b Boston, mass. 1821, w Elizabeth Evans ggs Doctor Griffith Evans Abbot, b Philadelphia, Penn 1850 w Grace Lee Babb, b Fairfield, Ind 1860."
University of Pennsylvania, Its History (1902) by Joshua Lawrence Chamberlain, vol. 2, p.438, contains a biographical sketch of Dr. Griffith Evans Abbot containing the genealogy to Samuel Abbot who married Naomi Whiting.
Wiki Tree shows Samuel Leonard Abbot Sr (1763-1856) of Andover, husband of Naomi Whiting, as a son of Stephen Abbot (1749-1813) of Andover and Sarah Crow (1749-1805); and Naomi Whiting as a daugther of Benjamin Whiting of Roxbury (1738-1777) and Margaret Mills d.1765; granddaughter of Nathaniel Whiting (1703-1790) and Hannah Lyon (1712-1774).