The Carroll Times Herald, an Iowa newsroom serving the Carroll community online and twice-weekly in print, is one of 13 North American news organizations joining the Facebook Journalism Project’s Local News Accelerator for digital subscriptions — and the smallest. The paper is co-owned by third-generation family members Douglas and Tom Burns, and the business dates back to 1868. The Local News Accelerator is a three-month program with workshops administered by non-profit journalism organizations, Facebook representatives said in a statement. The accelerator is designed to guide newsrooms in expanding digital subscription services. Other news organizations joining the accelerator are the Albuquerque Journal, Anchorage Daily News, Arkansas Democrat-Gazette, the Daily Memphian, the Globe and Mail in Canada, Los Angeles Times, the Philadelphia Tribune, the Charleston Post and Courier, La Presse in Canada, Tampa Bay Times, the Times-Picayune and New Orleans Advocate, and the Salt Lake Tribune.