peoplepill id: richard-crittenden-mcgregor
RCM
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Richard Crittenden McGregor is in following lists
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Notable American Zoologists
Gender:Male, Born in:Years 1850 to 1899
Notable American Scientists
Gender:Male, Born in:Years 1850 to 1899
Notable American Botanists
Gender:Male, Born in:Years 1850 to 1899
Notable American Ichthyologists
Gender:Male, Born in:Years 1850 to 1899
Notable American Malacologists
Gender:Male, Born in:Years 1850 to 1899
Richard Crittenden McGregor