Re Emily's birth (1918 minus 47) approx 1870 - 1872. Could she be UK born?
Graham Hunter Pierce birth 27th (not sure of the 7) July 1846 and baptism 5 Jan 1849 at St George, Camberwell, Southwark, Middlesex England . I'm attaching a snip as I'm not sure of the street name or the occupation of his Dad, for anyone looking 1851,1861, 1871 etc
Cheers, JM