Family Relationship Chart

GGGG grandfather							GGGG         granduncle
GGG grandfather						GGG           granduncle	first cousin five removed
GG grandfather					GG           granduncle	first cousin four removed	second cousin four removed
great grandfather				great           granduncle	first cousin three removed	second cousin three removed	third cousin three removed
grandfather			granduncle	first cousin twice removed	second cousin twice removed	third cousin twice removed	fourth cousin twice removed
father		uncle	first cousin once removed	second cousin once removed	third cousin once removed	fourth cousin once removed	fifth cousin once removed
self	brother	first cousin	second cousin	third cousin	fourth cousin	fifth cousin	sixth cousin
son	nephew	first cousin once removed	second cousin once removed	third cousin once removed	fourth cousin once removed	fifth cousin once removed	sixth cousin once removed
grandson	grandnephew	first cousin twice removed	second cousin twice removed	third cousin twice removed	fourth cousin twice removed	fifth cousin twice removed	sixth cousin twice removed
great grandson	great grandnephew	first cousin three removed	second cousin three removed	third cousin three removed	fourth cousin three removed	fifth cousin three removed	sixth cousin three removed

From http://community.netidea.com/tspencer/RelationChart.html