We also live in a small town, and my daughter began giving violin lessons about six months ago. She has had business cards printed up, but her best source of students has been her other students!
Word of mouth is the BEST advertising. In addition, her own violin instructor has all the students she wants right now, so she is referring her new callers to my daughter. So nice to have that endorsement.
Get to know some of the professional people in town. Rachael might also leave her card in public places, and mention to her physician and dentist (and anyone else she sees regularly) that she is teaching.
You gave advice on finding chords matching the note in the first or third beat of the measure. I tried this on the The Road North by Alisdair Fraser but
Love Me Tender sheet music is actually an American Civil War era piece. Find the guitar tabs, chords, & lyrics to Love Me Tender, & a piano arrangement, free!