Peter Slade Ball - Pedro Ball in 1855 Census in Cañuelas, Buenos Aires and baptism records of his daughter, Justa.

The 1855 Argentine census lists Pedro Ball, 37, and Maria Ball, 38, as residents of Cañuelas in the province of Buenos Aires. His country of origin is shown as England (Inglaterra). Her birth place is BsAs. Also listed on the page are two children, Justa Ball, 3, and Rosa Ball, 1, both also born in BsAs. The census shows there were 65 Ingleses or English living in the partido, population 3,368, at the time. Pedro is listed as a "creador" or maker who lived in a house made of brick.

The baptism record for Justa Leviña Bol (Ball) shows she was baptized on 20 May 1854 at Nuestra Señora de la Piedad in the Ciudad de Buenos Aires. Justa's parents are show as Pedro Ball, born in England, and Maria Bon (?), born in this city (BA). Justa's birth date was 18 October of the prior year. It would appear that these records relate to Peter Slade Ball and his family, and that he honored his mother, Jemima Lavinia Slade, by passing on her middle name to Justa Leviña.