Henry Augustus Smyth
He was the son of Admiral William Henry Smyth and the brother of astronomer Charles Piazzi Smyth and geologist Sir Warington Wilkinson Smyth . 
<triplet> William Henry Smyth <subj> Charles Piazzi Smyth <obj> child <subj> Warington Wilkinson Smyth <obj> child <triplet> Charles Piazzi Smyth <subj> William Henry Smyth <obj> father <subj> Warington Wilkinson Smyth <obj> sibling <triplet> Warington Wilkinson Smyth <subj> William Henry Smyth <obj> father <subj> Charles Piazzi Smyth <obj> sibling