Mother
Joanna Sevier
Duplicate sibling:
Sidney Redden
Please note recent revisions on John Sevier, relevant to alleged sibling, "Sidney" Sevier (I'm not sure it's properly documented):
Sidney Redden#/tab/revision
another duplicate sibling:
Col. Valentine Sevier
And finally, what brought me here, a duplicate of himself:
John 'Nolichucky Jack' Sevier, 1st Gov. of Tennessee