An announcement of the November 13th Libertarian Party of Hancock County monthly meeting made the Greenfield Daily Reporter on November 10th in an article titled "Libertarians will meet Monday".
It's really easy to get events announced in newspapers. Just do it. Be simple. Get it to the paper a few days before the event. And most importantly, a press release on an event is not the time to write an editorial. Just announce the event, location, date and time, your organization's name and if there is a special speaker, the topic of the talk.
Lastly, always have contact information on the press release so if the newspaper has questions, they can quickly and easily get in touch with a live person to ask them.