Two of Jane’s siblings, Francis William and Charles John, had long careers in the Royal Navy, both ending their careers as admirals, the former as Vice-Admiral of the Red and the latter as Rear-Admiral of the Blue. Their naval exploits are detailed in contemporary biographical sketches: Francis’ are found here (pp.27-8) and here (pp.274-283); Charles’ here (pp.26-27) and here (p.74-77). The venerable Dictionary of National Biography contains a brief biography of Francis (pp.258-59). His descendants (some of them naval officers in their own right) published Jane Austen’s Sailor Brothers in 1906 that contained letters to them from Jane.
For such a writer as herself, we are not blessed with many of her missives; the most modern edition of her letters – Jane Austen’s Letters (4th ed., 2011) – contains just over 160 items, We have a limited preview of this book; an older work that does not reflect modern editing procedures but does contain many letters is the Braeburn edition of 1884. A search through this work will find both letters addressed to these brothers as well as letters containing information about them. It is not perfect, but it will give the reader a glimpse into Jane’s view of the Royal Navy as seen through the lives of her brothers.