Kinship with a man like Hunt Rennie, however the legendary Don Cazar, owner of a matchless range and prize stallions was not a claim to be made quickly or lightly.
It's an important claim to suggest kinship. 
mnli hypothesis: It's an important claim to suggest kinship.  premise: Kinship with a man like Hunt Rennie, however the legendary Don Cazar, owner of a matchless range and prize stallions was not a claim to be made quickly or lightly.