Mac Amhalghaidh Mac Amhalghaidh Mac Amhalghaidh is an Irish masculine surname. The name translates into English as "son of "Amhalghadh"". The surname originated as a patronym, however it no longer refers to the actual name of the bearer's father. The form of the surname for unmarried females is Nic Amhalghaidh. The forms for married females are Bean Mhic Amhalghaidh and Mhic Amhalghaidh. The Irish "Mac Amhalghaidh" has numerous Anglicised forms. The surname has been borne by at least one notable Irish family. A cognate of "Mac Amhalghaidh" is the Scottish Gaelic MacAmhalghaidh; the feminine form of which is NicAmhalghaidh. There are several
Mac and Mc together in print two publications on filing rules, one covering that "word-by-word" convention, and another prepared in 1980 that is "letter-by-letter". A 1998 book attributes the changes to the rules to computer informatics, and notes the Mac/Mc change as its first example. 1982's "Scottish Roots", a guide for family history researchers, warns that older Scottish records do not in fact follow this convention, unlike contemporary telephone directories. A 2001 book of "New York Times" theatre reviews sorts Mc names as if spelled Mac. A 2002 official document for the State of Vermont recommends explicitly no special treatment for Mac and Mc.