How old was Jeanne Calment when john w davis was born?

What was the age (length of time since creation) of Jeanne Louise Calment (- pronounced Zhan Lwiz Kalman; 21 February 1875 - 4 August 1997), the French supercentenarian who had the longest confirmed human lifespan in history, living to the age of at the time John William Davis (April 13 1873-March 24 1955), the American politician, diplomat and lawyer is born on (has as his or her date of birth)?

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Show reasoning Reasoning

I followed this chain of reasoning:

I know from locally stored knowledge that:
April 13th 1875 is the birthdate of John W. Davis ([fact: ["125399509@trueknowledge.com"]])

February 21st 1875 is the birthdate of Jeanne Calment ([fact: ["18361366@trueknowledge.com"]])

By calculation (generator: ["human_age@trueknowledge.com"]) I know that:
Fact 1: 1 month and 23 days old is the age of Jeanne Calment

Fact 1 is true at April 13th 1875

By calculation (generator: ["applies_at_timepoint@trueknowledge.com"]) I know that:
Fact 1 is true at 1875

Fact 1 is true at April 1875

By calculation (generator: ["human_age@trueknowledge.com"]) I know that:
Fact 1: 1 month and 23 days old is a age

Fact 1: 1 month and 23 days old applies to Jeanne Calment

Fact 1 is true at April 13th 1875

By calculation (generator: ["ismoreaccurate1@trueknowledge.com"]) I know that:
April 13th 1875 is a more accurate version of 1875

April 13th 1875 is a more accurate version of April 1875

I used the following facts to provide this answer:

April 13th 1875 is the birthdate of John W. Davis

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February 21st 1875 is the birthdate of Jeanne Calment

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