Casserly Family History
Casserly Name Meaning
Irish:: from Mac Casarlaigh ‘son of Casarlach a personal name which may be based on casair ‘thorn’. In the Anglicized form there has been confusion with Ó Caisile a variant of Ó Caiside see Cassidy . variant of Caslin .
Source: Dictionary of American Family Names 2nd edition, 2022