| Name | Birth date | Relationship with Sean Mulcahey |
| | | 9th cousin |
| | | 8th cousin twice removed |
| | | 9th cousin once removed |
| Lessard, Rose A. | June 27, 1900 | Great-grandaunt |
| | | 6th cousin 3 times removed |
| | | 7th cousin twice removed |
| | | 6th cousin 4 times removed |
| | | 7th cousin 3 times removed |
| Lessard, Sylvia | August 02, 1927 | Grandaunt |
| | | 7th cousin twice removed |
| | | 8th cousin once removed |
| | | 7th cousin 3 times removed |
| | | 8th cousin twice removed |
| Lessard, Teri | September 21, 1975 | 2nd cousin |
| | | 9th cousin |
| | | 9th cousin once removed |
| | | 10th cousin |
| Lessard, Tharsile M. | March 30, 1923 | 1st cousin twice removed |
| | | 7th cousin twice removed |
| | | 8th cousin once removed |
| | | 7th cousin 3 times removed |
| | | 8th cousin twice removed |
| Lessard, Traci | September 04, 1977 | 2nd cousin |
| | | 9th cousin |
| | | 9th cousin once removed |
| | | 10th cousin |
| Lessard, Tricia | October 18, 1987 | 2nd cousin |
| | | 9th cousin |
| | | 9th cousin once removed |
| | | 10th cousin |
| Lessard, Victor J. | January 17, 1925 | Granduncle |
| | | 7th cousin twice removed |
| | | 8th cousin once removed |
| | | 7th cousin 3 times removed |
| | | 8th cousin twice removed |
| Lessard, Wife | | Wife of the great-granduncle |
| | | Wife of the 6th cousin 3 times removed |
| | | Wife of the 7th cousin twice removed |
| | | Wife of the 6th cousin 4 times removed |
| | | Wife of the 7th cousin 3 times removed |
| Lessard, Wife | | Wife of the great-granduncle |
| | | Wife of the 6th cousin 3 times removed |
| | | Wife of the 7th cousin twice removed |
| | | Wife of the 6th cousin 4 times removed |
| | | Wife of the 7th cousin 3 times removed |
| Lessard, Wilfred | November 30, 1943 | Granduncle |
| | | 7th cousin twice removed |
| | | 8th cousin once removed |
| | | 7th cousin 3 times removed |
| | | 8th cousin twice removed |