[fso301]

Allen’s birthplace made him an American AT birth, but he was not a citizen BY birth because his father was a British subject.

The article stated Allen's mother was an American citizen.

[fightinJAG]

What’s your legal basis for concluding that a mother’s citizenship determined “natural born” status (citizenship by operation of nature) as opposed to merely citizenship (by operation of law)?

You may be right, but I’d be interested in your evidence.