[to the [nth (generation)] generation]
0━┳ Michael J. Petrie &ca 1966 Susan G. Scutt ca 1945 ┣━1── Sara Jane Petrie ca 1966 ┗━2━━ Scott James Petrie ca 1972
[total][:] 2 后代 (4 [persons] [with] [spouses])
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