DEMPSEYIrish Anglicized form of Irish Ó Díomasaigh meaning "descendant of Díomasach", a given name meaning "proud".
DOUGLASScottish Anglicized form of Gaelic Dubhghlas, which meant "dark river" from dubh "dark" and glais "water, river" (an archaic word related to glas "grey, green"). This is the name of various places in Scotland, such as a tributary of the River Clyde.
DOYLEIrish From the Irish Ó Dubhghaill, which means "descendant of DUBHGHALL". A famous bearer was Sir Arthur Conan Doyle (1859-1930), the author of the Sherlock Holmes mystery stories.
LAWRENCEEnglish Derived from the given name LAURENCE (1). Famous bearers include revolutionary T. E. Lawrence (1888-1935) and author D. H. Lawrence (1885-1930).
MALONEIrish Anglicized form of Irish Ó Maoil Eoin meaning "descendant of a disciple of Saint JOHN".
MANNGerman, English From a nickname meaning "man". This may have originally been given in order to distinguish the bearer from a younger person with the same name.
MOON (2)English Originally indicated a person from the town of Moyon in Normandy.