Dear Mr. Whewell,
Thank you for posting your request on History Hub!
The Federal Government does not ordinarily create or maintain birth, death, marriage or divorce records. Such records are made and kept by State and local governments rather than the National Archives. In Massachusetts, the original vital record still is filed with the clerk of the town or city. We suggest that you contact that town or city clerk’s office to request a search for the birth record of Paschal Ormsbee. Before 1900, a few Massachusetts towns started publishing their own vital records in book form, therefore we suggest you also search Early Vital Records of Massachusetts From 1600 to 1850 for records of Paschal Ormsbee. In addition, please review the FamilySearch Research wiki for Massachusetts Vital Records.
To determine your Native American heritage, we suggest that you begin by reviewing NARA’s Native American Heritage: Researching an Individual or Family webpage.
We hope this is helpful. Best of luck with your family research!