Very little exists, as far as I can see, on Timothy Jerome's parents or ancestors. This is what I have on Timothy...
Timothy Jerome emigrated to America in about 1717 and he evidently came directly to Meriden, CT. He was probably from the Isle of Wight, and the family is believed to be of Huguenot origin. He bought property in Meriden in 1722. (a description can be found on p. 106 of source) He was a man of considerable wealth for at the time of his death in 1750 his inventory included four slaves named Pomp, Rose, Jenny, and Prince. The valuation placed on these slaves was enormous, viz: 460, 295, 190, and 95 pounds sterling. This was because the value of the currency was at that time much depreciated. His wearing apparel included such articles as "a straight bodied coat of pale blue, a red vest of bayse, a black vest of callimanco and leather breeches; mixed colored coat and vest, a beaver hat, etc."
Altogether Timothy Jerome must have been very smartly attired when arrayed for meeting or expecting guests; and he must have often had friends at his home who were not disinclined to hilarity, if we may judge from the list of seven punch bowls, a case of bottles, large drinking glasses and sixteen pewter tankards mentioned in his inventory.
It should interest all to know that the brilliant district attorney of New York, William Travers Jerome, is a descendant of Timothy in the sixth generation. Chauncey Jerome, the well-known clock manufacturer of New Haven 50 years ago, was also descended from Timothy. His son Samuel who lived in Timothy's property moved to Stockbridge, MA.
Source: An Historic Record and Pictorial Description of the Town of Meriden, CT, by C. Bancroft Gillespie, 1906, pp. 105-107.
The ancestor of Jennie Jerome is not your Samuel Richard Jerome. It is Samuel Jerome, the brother of William, Timothy's son. Samuel moved his family to NY state.
As far as I can tell it's...
Timothy Jerome/Abigail Rich
Samuel Jerome/Lucy Foster
Aaron Jerome/Elizabeth Ball
Isaac Jerome/Aurora Murray
Leonard Walter Jerome/Clarissa Hall
It was the same Jerome family, just a different Samuel.
Here are some notes I have on Samuel and offspring...
Great great granddaughter was Jennie Jerome, mother of Winston Churchill.
Served in the Revolutionary War. Was a Sergeant in the Berkshire County Militia during the American Revolution. He moved to New York state about 1785.
Will was probated April 9, 1796; left his wife Lucy and children: Chauncey, Samuel, Timothy, John ,Levi, and several daughters.
Samuel Jerome, Jr. came to Salina from Saratoga County in 1791, and then to Pompey, his three brothers following. Both Samuel, Sr. and his sons served in the Berkshire Militia. After coming to Pompey, Samuel, Jr. was a lieutenant in the Onondaga militia and a captain in 1797. In 1794 he was an overseer of highways in Pompey.
The Jeromes originated as very early settlers in the town of Pompey. The Pompey Jeromes were farmers, who made a specialty of making very large quantities of most excellent cheese every year. Their cheese had a great reputation all over this section of the state. Addison and Leonard H. Jerome were residents in Skaneateles many years ago. Addison was a clerk for Phares Gould in 1828, and Leonard H. Jerome studied law in the office of John C. Beach. It is through the Jerome family that Lady Randolph Churchill is related. Father Leonard H., uncle Addison.
Source: Skaneateles, a history of its early settlement, 1902, p. 336.
Isaac Jerome was the son of Aaron Jerome, one of the pioneers settlers of western New York. Aaron Jerome was the son of Samuel Jerome, who removed from Wallingford, CT, to Stockbridge, MA. He was the son of Timothy Jerome. Isaac married Aurora Murray. Their son Thomas Atwater Jerome married Emma Vanderbilt. Another son Leonard married Clarissa Hall. Their daughter was Jennie Jerome who married Lord Randolph Churchill.
My GGGGGgrandmother was Abigail Jerome, the daughter of Timothy and Abigail. My Abigail married Joseph Stone. Their son Nathaniel Stone married Temperance Jerome. I believe she was the son of either William or Timothy, Jr. I am still searching for that verification. Regardless, Nathaniel married his first cousin. So I have a "double Jerome" connection. Nathaniel and Temperance's son Roswell married Caroline Merriman whose family also has some connection to Winston Churchill - just like your mother's maternal side. Many of these early CT or MA families had blood ties to each other through intermarriages. It's mind-boggling!
This summer I visited the CT area and took pix of the William Jerome house which is still standing. William was quite well off. Lived in Bristol, CT and had a very large family. He appears to have left much of his property to William, Jr. I saw/copied land transfers which state this.
Hope this has helped you in some way!
Keep in touch if you have anything to share. Would like to hear from you.