I am a descendat of Jacob Broom, signer of the constitution, who is said to be descended from the Broome Co. founders, However, it is difficult to find much detailed info on Broome Co. early history--at least on-line. I don't remember seeing the name of the Broome you are looking for. Do you have any more info? Dates?
The following is copied from a book, lineages of First Families of the Americas, which mentions the Broome Co. link......
Broome (Broome), ancient family of Norman decent, claimed to derive through the House of Anjou, which gives the BeBurgh, from the dau. of the Earl Comyn (Connemara), who was the wife of Earl Fulk of Anjou. Prior to 1300 the Broome family resided in Salop and Warwickshire,
Eng. WILLIAM BROME was head of the Salop family in the early 1600's. JOHN BROME was head of the Warwickshire branch. John moved to Halton upon his marriage to a lady of BADDINGTON descent. He was thereafter known as Sir John Brome of Halton. The decendants of SIR JOHN BROOME of Halton migrated to Herefordshire, from where, prior to 1650, migrated to America.
The decendants are as follows: THOMAS BROME, settled in New York, and Broome County, NY is named after his family....
HENRY BROME, settled in the Carolinas where he has many distinguished decendants, among them the Governor Brome of Florida, whose son JOHN D. BROOME, was on the Supreme bench from 1886....JOHN BROME, came to Maryland and settled in Calvert County under the auspices of his kinsman, THOMAS CORNWALLYS, 1st Sec'y to Lord Balimore. He held by grant and purchase large estates in Dorchester, St. Mary's and Calvert Counties, Maryland in 1650 and 1660. In 1653 John was one of the committee appointed by the council of Maryland to lay out the county seat of Calvert Co., named Calverton. While in England he was commissioned by Lord Baltimore to carry to the Province his official notice of the accession of William and Mary to the throne of England. He died in England before sailing back to America. JOHN BROM/BROOME married MARGARET UNKNOWN. They had a daughter, MAUD BADDINGTON BROME (no further record) and a son JOHN BROME, b. 1656-8, who signed as "Colonel John Brome of Foot", was appointed one of a commission to regulate civil affairs in Calvert Co. in 1689. He was commissioned by the King and Queen to lay out Parishes, etc; was a vestryman for Christ Church 1687-1730. He married MARGARET WINIFRED JONES, dau. of ROBERT JONES. JOHN BROME/BROOME (#2) and MARGARET JONES had the following children: 1. JOHN BROME (#3), b.1680. 2.WILLIAM BROME, b. bef 1685, died unmarried. 3. HENRY BROME/BROOME b. abt 1686. 4. THOMAS BROME/BROOME, b. abt 1686. 5. WINIFRED BROME. 6.ANN BROME/BROOME..... JOHN BROME/BROOME (#3), b. 1680, d. 1738. Member of the House of Burgesses from Calvert Co.,VA in 1712/High Sheriff in 1714/lord commissioner in 1720/Lord Justice and member of the Quorum in 1731-38. Married in 1702 to ANN HOOPER, dau of CAPT. HENRY HOOPER. The children of JOHN (#3) and ANN HOOPER were as follows: 1. JOHN
BROME/BROOME (#4), b. 1703, d.1749. 2. HENRY BROME/BROOME, b. 1705, married UNKNOWN DAWKINS. 3.MARY BROME b. 1707, married RICHARD YOUNG in 1725. 4. THOMAS BROME/BROOME, b. 1709, married DORCAS GODSGRACE. 5. ANN
BROME/BROOME, b. 1712.......JOHN BROME (#4), Col., 1703-1749, was written as JOHN BROME JR. in 1736.
Hope this helps!
Lynn van Rooijen