| # | Children | Name | Born | Died | Father | Mother |
| 1 | | | b. 1876 | d. Yes, date unknown | LONGSTAFF, William Francis | WATSON, Jane |
| 2 | | | b. 1878 | d. Yes, date unknown | LONGSTAFF, William Francis | WATSON, Jane |
| 3 | | | b. 1880 | d. 1935 | LONGSTAFF, William Francis | WATSON, Jane |
| 4 | | | b. 1882 | d. Yes, date unknown | LONGSTAFF, William Francis | WATSON, Jane |
| 5 | | | b. 1884 | d. Yes, date unknown | LONGSTAFF, William Francis | WATSON, Jane |
| 6 | | | b. 1888 | d. Yes, date unknown | LONGSTAFF, William Francis | WATSON, Jane |
| 7 | | | b. 1894 | d. Yes, date unknown | LONGSTAFF, William Francis | WATSON, Jane |