Country music singer Donnie Bowser (Bowshier), a Springfield resident performed frequently on WJEL's live Saturday night program.
In 1954, the station was moved to Springfield and was given new call letters: WBLY, which previously had been used by the present-day WIMA in Lima, Ohio.
WBLY's studios were first located in the Chamber of Commerce building at the corner of Spring and High streets in the early 1950s then moving to a more modern facility at 1711 West Main Street along with sister WBLY-FM which would later become WAZU (formerly WJEM, the FM sister to the original WJEL.)
Bob Yontz sold the remaining AM station to son Ronald- hence Champion City Broadcasting became RAY (Ronald A. Yontz) Broadcasting operated by Jerry Staggs as part of a local marketing agreement with WIZE which he briefly owned and moving the WBLY studios to the WIZE site until 2002 when it was sold to Urban Light Ministries, a local non-denominational Christian charity in April 2002 which adopted the WULM call letters in August of that same year.
After Hall's death in 2004, the on-air studio originally used by WIZE was renovated in 2005 and dedicated in his memory by his longtime friend Bob Pitsch who was station manager from 2003 to 2006.
In 1979 they changed the call letters to WAZU ("FM-103 The Zoo...From A to Z to You") and stopped simulcasting WBLY and began playing adult contemporary music aimed at the Dayton audience.
From 1988–1995 the station competed fiercely with WTUE-FM but in 1995 it was sold to Great Trails Broadcasting and its call letters were changed to WING and it played classic rock from 1995–2001.
Originally country (as WJEL) when it was founded, when it was sold to a group of local businessmen and the call letters were changed to WBLY for the principals - Bailey, Lucas and Yontz.
In 1981 WBLY changed its format to classic country and switching to oldies in 1987 and the following year it was "sold" to Yontz's son Ron, who operated RAY broadcasting.
To celebrate, and in keeping with the format, staff members Dale Grimm and Jim Mosier were on the air for 24 continuous hours, operating from the station's "street studio" on the first floor of the Marketplace on South Fountain Avenue.
During this time, its weekend programs along with NASCAR coverage included The Motown Show, Dennis Mitchell's Breakfast With The Beatles, Oldies Coast To Coast, Little Walter's Time Machine, Glenn Sauter's Hits of Yesteryear and Cool Bobby B's Doo Wop Stop.
On-air personalities included Marco Simmons (who also did high school sports play by play), Dale Grimm (also Sales Manager), Joe Madigan (then a student intern from John Carroll University and its campus FM station WJCU) and Bob Roberts (Bob Pitsch, General Manager).
Michelle Phillips (Michelle Smart) worked with a news background as Darryl Bauer's replacement and later as Bob's on-air sidekick, Brad Lovett was sales associate and live remote broadcast personality and Jim Linthicum did freelance voice-over work for the oldies format.
On-air, traffic, sales and production staff included Linda Mellott, Natalia Mendez, and Bob Blindauer.
In October 2006, the morning show and other staffers went on tours of haunted houses all over Southwest and Central Ohio, and gave away tickets to listeners.
Winners were able to attend shows featuring the Blue Man Group, Trans Siberian Orchestra, Kenny Loggins, at Nationwide Arena and the Nutter Center, as well as performances of "Beauty and the Beast", "Cats" and a Rat Pack tribute show at Victoria Theatre and the Schuster Center in Downtown Dayton.
Scott Leo, the current play-by-play man of the Columbus Clippers, broadcast games with Bannister and others at the station.
The switchover to Radio Maria programming took place at 12 noon Eastern Standard Time on Saturday May 31, 2008.
Radio Maria was founded at first with humble beginnings as a small parish operated station in the community of Erba (in the province of Como,) Italy in 1983 before its subsequent international growth in the 1990s which gave birth to the World Family in 1998.
W277AO's simulcast of Radio Maria programming on WULM also reaches the northern Dayton suburbs of Riverside, Vandalia, Huber Heights, Fairborn, Tipp City, West Milton, Troy and the communities of Park Layne, New Carlisle and portions of Beavercreek in addition to downtown Dayton if one is travelling north of the downtown area on Intestate 75.
Though WULM along with WHJM licensed in Anna (serving the Upper Miami Valley and greater Lima area) for the most part is a repeater of KJMJ, there are several locally originating programs including "Living With Mary" which airs on Friday afternoons, Francesca Franchina's "From The Tummy To The Heart" and "Francesca and Friends" from The University of Dayton's Marian Library.
In addition to the Springfield studio at the Father Boyle Center, a Dayton studio with administrative offices opened in the summer of 2011 in the Marianist Center at Mount Saint John at 2235 East Patterson Road near Beavercreek where additional live local programs air.
WULM listeners can also access the Radio Maria audiostream through the iPhone, BlackBerry, and Android mobile phone devices during the night time hours outside of Clark County and outside its regular daytime signal area.
Downloads for the respective mobile device apps are found in the links below and at the Radio Maria USA website.