Mary N. Crawford, shown sitting next to blackboard
| Uploaded by | Smithsonian Institution |
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| License | No known copyright restrictions |
| Comments | 5 |
| Favorites | 42 |
| Views | 51,753 |
| Date taken | 2009-02-27 17:23:47 |
| Date uploaded | 2009-03-08 |
| Tags | smithsonianinstitution, womensday, blood, physician, woman, scientist, labcoat, pearls, smiling, chalkboard, blackboard, bloodtypes, philadelphia, childrenshospitalofphiladelphia, chop, serum, immunology, hematology, transfusion, marycrawford, bloedgroep, schoolbord, krijt, vrouw, teacher, crawford, lessthan, 67, bloodtype, smile, smithsonianinstitutionarchives, womenshistorymonth, womeninscience, 2009, medicine, private, 20thcenturymid |
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