He designed and built fast sailing boats at Castle Saunderson – as did his son and successor Edward.
[3] Alexander was born to Francis Saunderson and Anne Bassett White.
On 18 March 1828, Saunderson married Sarah Juliana, sister of fellow Cavan MP, Henry Maxwell and daughter of the Henry Maxwell, 6th Baron Farnham.
In 1947, Saunderson's great-grandson, also named Alexander, married Louise Astor Van Alen, granddaughter of James John Van Alen and grandniece of RMS Titanic victim John Jacob Astor IV, and the ex-wife of two different Georgian Mdivani princes.
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