||Pages in this category should be moved to subcategories where applicable.
This category may require frequent maintenance to avoid becoming too large. It should directly contain very few, if any, articles and should mainly contain subcategories.
These are Scientists that are recognized as being from the United States of America. For other scientists from other nations in the continents of North and South America, see the Scientists by nationality and select the appropriate nation sub-category.
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This category has the following 49 subcategories, out of 49 total.
The following 200 pages are in this category, out of 612 total. This list may not reflect recent changes (learn more).(previous 200) (next 200)