As noted earlier, Evan McMullin submitted approximately 5,500 signatures in Wyoming to be on the ballot. The law requires 3,302. However, Wyoming law does not allow voters to sign for more than a single independent candidate for the same office. Approximately one-third of the McMullin signers had also signed for either Jill Stein or Rocky De La Fuente. Because those two candidates filed their petitions before McMullin did, the signatures of those multiple signers did not count for McMullin.
The order in which the candidate signed the petition can be determined (because signers show the date of signing) but is not material. The signature that counts is the first one submitted to the Secretary of State.