Who is Delany Children from Having Our Say: The Delany Sisters' First 100 Years and what is their importance?

Henry and Nanny Delany had ten children; Lemuel Thackara Delany (1897); Sarah Louise (1889); Annie Elizabeth (1891); Julia Emery (1893); Henry, Jr. (1895); Lucius (1897); William Manross (1899); Hubert Thomas (1901); Laura Edith (1903); and Samuel Ray (1906).