I live in this area and I'll say this... Our media/law enforcement sort of suck when it comes to missing persons. I wondered why they didn't give more info. From what I found, Jill worked at Oasis Wellness Center.
Oasis Wellness Center - Menasha Area - Alignable
I'm not sure if that's current but neither of them seem to be on social media. But even if they aren't, surely they must know someone who is and you'd think that they would post something. The people who go missing in this area aren't given a chance because the authorities don't give out any info. Then, you hear nothing for months until their remains are found in another city who actually does report news.