We have met the mentioned and well known researcher and author Kristine L Sjostrom.
Kristine L. Sjostrom has researched for over a decade in numerous Spanish archives in situ and by correspondence. Specializing in 18th-century Spanish-Louisiana history, she regularly researches at the General Archive of the Indies (AGI) in Seville.
Kristine L Sjostrom is also the author of the requested book.
Fernando de LEYBA (1734-1780): A Life of Service and Sacrifice in Spanish Louisiana.
You can buy the book at Amazon (es, com, se)
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