Query his death date as Debrett reports that his son John Pole S. was born in 1872: correctly queried as June Roughly reports he died on the same date but in 1880.

His marriage cannot be found on FreeBMD.

At All Saints church, Calbourne, Isle of Wight, transcribed by the IoW Family History Society and put on their website at <http://www.isle-of-wight-fhs.co.uk/mis_bis/mis_calbourne_all_saints.htm>;:

Also of Cornwall
(of St Johns Bishopstoke)
third son of
Sir Richard Godin Simeon, Bt.
born Feby 5th 1820
died March 18th 1880
and was buried in The Cemetery
Winchester.
He married Jany 1st 1861
Mary, youngest daughter of
Thomas Browne Evans Esqre
of North Tuddenham Norfolk.
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Their marriage registration date:

Surname  First name(s)  District  Vol  Page
Marriages Mar 1861   (>99%)
EVANS    Mary           Wimborne  5a   385
SIMEON   Cornwall       Wimborne  5a   385
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