Sources

This is the one in Cowal not on Bute:
Keames 1654 Blaeu map Bute
The Kaims 1747-55 Roy
Cames 1804 Heather
Kaims 1801 Langlands

Bute:
Keamez 1654 Blaeu map Bute
Kemes 1804 Heather
[Cannot locate: 1295 Kamesnamuchlach; 1475/6 Camys; 1530 Kammys; 1771 Kaims. See McLean 1981, 89-90]
The Kamesnamuchlach entry is probably to differentiate it from the Bute place. This may also have no article because of this form.