If you don't see her name in the NamUs casefile for this UID ...
... you can check out Websleuths rule-out thread:
You can also do a Websleuths site-wide search on Susan Smalley's name and the UID's NamUs and DoeNet case numbers to see if that possible match was considered before in discussion on a different thread (BTW, there doesn't appear to be a DoeNetwork case file for this UID).
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If you can't find evidence of a submission or rule out by the above means, the only other option that I know of is to just call in and ask.