 McCartney later played for Ulster and Linfield before moving to England to join Everton, where he spent a single season without making a League appearance.He moved to West Ham United, along with Everton teammate George Kitchen, in the summer of 1905 and played six Southern League Division One games for the club during 1905–06.After leaving West Ham, McCartney returned to Ireland and played for Belfast Celtic and Glentoran, before returning to Linfield.