Henry was the eleventh of twelve children of John Waymouth and Eliza (nee Glanville) of Pembroke, Wales then Plymouth.  
In the 1841 and 1851 census, Henry was living with his parents and seven siblings at Stoke Damerel, Plymouth.
Henry married Susanna Jenkins at Plymouth in 1859.
in the 1861 census, Henry and Susanna were living at Plymouth with the family of Susanna's sister, Elizabeth Risdon.   Henry was a clerk at the Dockyard.
In the 1871 census, Henry, Susanna and their five children were living at Headland Park, Plymouth.   Henry was a clerk at H.M. Dockyard.
In the 1881 census, Henry, Susannah and their four younger children were living at Deptford, Kent.  Henry was a pensioner writer.
Henry died on 29 March 1896.