| Name | Oldham, Michael John |
| Date of birth | 1956 |
| Remarks | [collector note: chiefly in Ontario: DAO, MICH, TRT, WAT] |
| ASA Botanist ID | 187653 botanist |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/e03d6f72-a87d-445a-8ecf-eb4a7edac1fc |
| Variant name | Michael John Oldham |
| Variant name | Oldham, M. J. |
| Standard/Label Name | M. J. Oldham |
| Full Name | Oldham, Michael John |
| Geography Collector | Canada, United States of America |
| Specialty Collector | Phanerogams |
| Citation as Collector | Michigan Botanist. Ann Arbor, MI |
| Member of teams/groups | |
| Holdings | Search for specimens collected by M. J. Oldham |
| Collections in | 1990 (1), 1992 (5), 1998 (1), 2008 (1), 2011 (1), 2014 (1), 2015 (2) |
| Collector Teams: | M. J. Oldham & A. W. Cusick M. J. Oldham, T. Norris & B. Van Sleeuwen A. A. Reznicek, M. J. Oldham, J. M. Bowles, T. J. Lobb, D. Kilgour & M. Sully M. J. Oldham, S. R. Brinker & J. Benvenuti M. J. Oldham & W. D. Bakowsky M. J. Oldham & R. Vanderjeugd M. J. Oldham & Mary A. Young |