Jackson had two adopted sons, Andrew Jackson Jr., the son of Rachel's brother Severn Donelson, and Lyncoya, a Creek Indian orphan adopted by Jackson after the Creek War. Lyncoya died in 1828 at age 16, probably from pneumonia or tuberculosis.
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In his will, Jackson left his entire estate to his adopted son, Andrew Jackson Jr., except for specifically enumerated items that were left to various other friends and family members. Jackson left several slaves to his daughter-in-law, and grandchildren. Jackson left a sword to his grandson, with the injunction, "that he will always use it in defence of our glorious Union."
[link|http://www.thehermitage.com/hermtg_history/hermtg_property/decline/content.htm|The Hermitage] fell into decline after Jackson's death, but they don't mention estate taxes or any other tax problems.
Do you have a link? Thanks.
Cheers,
Scott.