He married Mary, née Lloyd (d. 1785), widow of John Leslie, 10th Earl of Rothes, in 1770 and they had four sons and five daughters.
As Bennet Langton records: 'His affection for Topham Beauclerk was so great, that when Beauclerk was labouring under that severe illness which at last occasioned his death, Johnson said (with a voice faultering with emotion), "Sir, I would walk to the extent of the diameter of the earth to save Beauclerk".' (Boswell 1672).
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