Ban Carson grew up in a poor single-parent household in Detroit.

班·卡森在底特律一个贫穷的单亲家庭中长大。

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The rise of grandfamilies also highlights another growing branch of America's changing family tree: The single parent household, overwhelmingly headed by mothers.

CNN: Economy sends more kids to grandma's house

Priory, 55, grew up in a single-parent household in Lakehurst, New Jersey.

FORBES: Trading places

Priory, 55, grew up in a single-parent household in Lakehurst, N.

FORBES: Trading Places