JAN: 1) You stated: "Also, you once mentioned hugeunot ancestry in your line."
I have no known Cavelier/LeCavalier Hugeunot ancestry. I do have some ancestors who came from the La Rochelle area of France but they do not carry the Cavelier name.
2) You stated "Louis CAVALIER in your line that married Mary____, of Lincoln Cty. ME"
There is a Louis Cavelier b.May 24, 1695 that married  a Marie Anne Boudrias. Louis was a sibling to J. B. Cavelier b. b.Jul. 11, 1697 and father of the J. B. Cavelier noted below. Louis' father was Guillaue Cavalier.
3).do you have the names of siblings for John Baptiste Francois CAVELIER b. 1729 Montreal
Husband John Baptist Francis CAVELIER ditRangeard-352
Born25 Mar 1729 Place Montreal, Quebec, Canada Baptized 25 Mar 1729 Place Montreal, Quebec, Canada DiedSep 1801 Place River Raisin, (Monroe), Michigan Buried 16 Sep 1801 PlaceSt. Antoine, River Raisin, Michigan Married 19 Sep 1763 Place Ile De Montreal, Montreal, Quebec Husband's father Jean Baptiste CAVELIER-355 Husband's mother Marie Charlotte PIGEON-356
Wife Magdeleine PARENT-353
Born 30 Aug 1743 PlaceDetroit, Wayne Co, Michigan Baptized15 Jul 1745 PlaceSte. Anne, Detroit, Michigan DiedAug 1801 PlaceRiver Raisin, (Monroe), Michigan Buried12 Aug 1801 PlaceSt. Antoine, River Raisin, Michigan Wife's father Gilbert (Albert) PARANT-383 Wife's mother Suzanne Marie RICHARD-384
1) Magdalene CAVELIER dit Rangeard-354 Born1781 Place Montreal, Quebec, Canada DiedFeb 1810 PlaceRiver Raisin, (Monroe), Michigan Buried8 Feb 1810 PlaceSt. Antoine, River Raisin, Michigan SpousePeter NAVARRE-385 Married15 Apr 1806 PlaceSte. Anne, Detroit, Michigan
2) Joseph CAVELIER dit Rangeard-345 BornAbt 1782 Died1813 Place Fort Stephenson, Fremont, Ohio Buried 1813 PlaceFrench Burial Gnd, Fremont, Ohio SpouseMarie Louise DEMARS-593 Married 22 Nov 1803 PlaceSt. Antoine, River Raisin, Michigan 18 Jul 2000
SOURCE: The Rev. Fr. Christian Denissen, GENEALOGY OF THE FRENCH FAMILIES OF THE DETROIT RIVER REGION, 1701-1936; Detroit: The Detroit Society for Genealogical Research, 1987; Vol. I, p. 234