I have information on an Emm/Emms family (written both ways in my data) who lived in Scotland (Dundee/Angus)
I am not related through this line but the first marriage of my ancestor, William Hanton was to a Matilda(mittildy?) Emm/Emms in 1858. She died 1870 age 31. Her parents were Charles Emm/Emms and Helen Brown married in 1829. From what I can see, she had siblings Jean Vallantine 1830, William 1832, Mary 1840. Matilda and William Hanton had a child Mary Emm Hanton in Dundee, Angus 23 mar 1859.
I have more info and addresses of their houses if anybody is interested.