Alexander Cosby (died 1742) (d. 1742) Parents Elizabeth L'Estrange Alexander Cosby Children Mary Cosby Anne Cosby William Cosby Elizabeth Cosby Phillips Cosby Siblings George Cosby Henry Cosby William Cosby Loftus Cosby Dorcas Cosby Arnold Cosby Isabella Cosby Jane Cosby Thomas Cosby Elizabeth Cosby Anne Cosby Celia Cosby Dudley Cosby Partners Anne Winnard