0.15 Bernhard J. Stern A. W. Howitt Lorimer Fison, Selections from the Letters of Lorimer Fison and A W Howitt to Lewis Henry Morgan, American Anthropologist, 1930.

{ fact point evidence anthropologist }	0.21
{ man primitive human great }	0.15
{ tribes indians indian river }	0.14
{ kinship terms descent term }	0.10