Call from Sandra to my business.  Didn't say what it was regarding, asked for the business owner and left me this number as a call back.

(630) 782-6841
They said they were calling for the anti-drug ad book for Larkin High School. Same deal others reported here.

Same here.
I suspect it's a markting comany selling advertising on school calendars and the like.

Not to worry it's a national company calling businesses and homes for advertising in School year books

Caller named "Heather" claiming to be with JFK High School called and left message stating as much, and left a phone number of (800) 650-3330 to call her back.

We haven't yet as I am not familiar with any school(s) outside of private or colleges having an 800 number.

Got a call today from this phone number.  They said they were calling for Emerson High School.  Call came out of Illinois - 630-782-6841

Wow! Thank you for that information. I also got a call from 8006503330. The woman said her name was Ana calling in regards to a high school calendar from Martin Van Buren High School. I guess they look up the schools that are around the area and try to sneak in that way. My boss is also a very busy person and DEFINITELY doesn't need to be dealing with this rubbish.

Kelly called here too saying she was from Collinwood High School, which is a school I recognize, however I doubt they'd have an 800 number. Glad I didn't forward it to the person she asked for because my manager is very busy and doesn't have time for nonsense such as this. I'm glad I checked it out.

Left message on my recorder: Caller said her name was Kelly representing Burgard High School and to call (800)650-3330. I called after 5pm  but no one answered at the time and the recording from them said something about a calendar company. I am not going to call again because I don't think a high school would have an 800 number.

Selling advertising space in school calendar.