| Birth* | | Elizabeth Backhouse was born possibly daughter of Nicholas Barkhouse and sister of Robert Barkhouse of Lincoln, England. |
| Marriage* | 16 April 1791 | She married Samuel Underwood (1767-1836), son of William Underwood (ca 1733-1801 DE) and Elizabeth Dixon, on 16 April 1791 at New Castle Co., Delaware, per A list of marriage license bonds, so far as they have been preserved in New Castle County, Delaware, 1744-1836 SLC 441415 pg 33 - Samuel is of Christiana Hundred, and Elizabeth Backhouse is of Brandywine. |
| (Witness) Census1820 | 1820 | Elizabeth Backhouse is assumed to be one of the household of Samuel Underwood (1767-1836) in the 1820 census, Tyler Co., West Virginia, who has "Underwood, Samuel" 1m16-26 1m45+ (Samuel) 1f0-10 2f10-16 2f16-26 1f45+ (Elizabeth). |
| (Witness) Census1830 | 1830 | Elizabeth Backhouse is assumed to be one of the household of Samuel Underwood (1767-1836) in the 1830 census, pg 184, no twnshp listed, Tyler Co., West Virginia, who has Underwood, Samuel Senr 1m50-60 (Samuel) 1f60-70 (Elizabeth). |