A real estate agent, Eberly said he served 11 years on the Antrim Township Board of Supervisors in the 1970s and 1980s and has long had an interest in state politics.
The pay raise the members of the General Assembly voted themselves last summer resulted in a public backlash that caused the House and Senate to rescind the increase later in the year.
"They got caught with their hand in the cookie jar, and when they got caught, they wanted to put it back," said Eberly.
If elected, he said he wants to see the General Assembly "talk seriously about term limits" and reducing the number of legislators. The legislature should also bring its benefits and perks in line with what state employees receive, he said.
"The legislature should have no better benefits than any other employee," he said.
Eberly becomes the second Republican to officially announce his candidacy. The first was Todd Rock, of Mont Alto, Pa., a school board director in the Waynesboro Area School District.
Fleagle said Friday he will be making an official announcement regarding his candidacy within two weeks.
Fleagle, who voted for the pay raise last summer, also voted to rescind the increase late last year. The money he received in unvouchered expenses after the passage of the raise has been returned, he said.
"I returned that in a single check the next business day after we rescinded the pay raise," Fleagle said.
Doug Hodges, 59, of 5573 Buchanan Trail West, Greencastle, says he will be running for the Democratic nomination and was scheduled to make his official announcement Saturday at the former Greencastle train station.
"It's something I've always wanted to do, and it's a good time in my life for it," Hodges said Friday. Hodges is a retired pastor for the Lemasters and Upton United Church of Christ Charge who works part time for the Pennsylvania Council of Churches.
This is his first run for office since winning junior class and student council president races in high school, Hodges said.
"Now that I'm on a roll, I'm going to seek something higher," he said.