Search by last name. Do no make assumptions as to who this is. Only add a collector if the person is clearly listed as a collector on the label. Do not assume that the owner of the collection was the collector. For example, the label may say that the specimen came for the Singley Collection, but Singley may not have been the collector. Or the label may say that the specimen came "from Marsh", but that doesn't mean that Marsh necessarily collected the specimen. If the label says "from" a particular person, enter this information in the Collecting Remarks section. Also, make no assumptions as to who a person is based on their initials. If all you have are initials, then use the initials. You may have more than one collector listed on a label. Add or subtract collectors by using the (+ -) buttons.