Question: R.C. Bannon had ties to Barbara Mandrell through who?

Context paragraphs:
Too Hot to Sleep (song): "Too Hot to Sleep" is a song written by R.C. Bannon and John Bettis, and recorded by American country music artist Louise Mandrell.  It was released in July 1983 as the first single and title track from the album "Too Hot to Sleep".  The song reached number 10 on the "Billboard" Hot Country Singles & Tracks chart.

Wish You Were Here (Barbara Mandrell song): "Wish You Were Here" is a song written by Kye Fleming and Dennis Morgan, and recorded by American country music artist Barbara Mandrell.  It was released in August 1981 as the second and final single from her live album "Barbara Mandrell Live".  It peaked at number 2 on the U.S. "Billboard" Hot Country Singles chart and number 11 on the Canadian "RPM" Country Tracks chart.

I Wanna Say Yes: "I Wanna Say Yes" is a song written by R.C. Bannon, and recorded by American country music artist Louise Mandrell.  It was released in August 1985 as the second single from the album "Maybe My Baby".  The song reached number 5 on the "Billboard" Hot Country Singles & Tracks chart.

One of a Kind Pair of Fools: "One of a Kind Pair of Fools" is a song written by R.C. Bannon and John Bettis, and recorded by American country music artist Barbara Mandrell.  It was released in July 1983 as the second and final single from the album "Spun Gold".  The song was the last of six number one country singles for Mandrell.  The single went to number one for one week and spent a total of fourteen weeks on the country chart.

Just in Case (Ronnie Milsap song): "Just in Case" is a song written by Hugh Moffatt, and recorded by American country music artist Ronnie Milsap.  It was released in October 1975 as the second single from his album "Night Things".  The song reached number 4 on the "Billboard" Hot Country Singles chart.  The song was also covered by fellow artist Barbara Mandrell that same year on her album "This Is Barbara Mandrell".

Louise Mandrell: Thelma 'Louise' Mandrell (born July 13, 1954) is an American country music singer.  She is the younger sister of fellow country singer Barbara Mandrell, and older sister of actress Irlene Mandrell.  Louise had a successful singing career in country music from the 1970s, with a string of hits all during the 1980s.

R.C. Bannon: Daniel Shipley (born May 2, 1945) is an American country music singer, known professionally as R.C. Bannon.  Active since 1977, Bannon has recorded for the Columbia and RCA labels.  He was also married to singer Louise Mandrell from 1979 to 1991, and charted six duets with her in addition to twelve singles of his own.  His highest-charting single was his 1979 cover of the Peaches & Herb hit "Reunited," recorded as a duet with Mandrell, that reached number 13 on the country music charts in 1979; his most successful solo single is "Winners and Losers" at number 26.  In addition to recording as a solo artist and with Mandrell, Bannon co-wrote songs for Ronnie Milsap, Bobby G. Rice, Barbara Mandrell and Steve Azar.

Sleeping Single in a Double Bed: "Sleeping Single In a Double Bed" is a song written by Kye Fleming and Dennis Morgan, and recorded by American country music artist Barbara Mandrell.  It was released in August 1978 as the first single from her album "Moods".  "Sleeping Single In a Double Bed" was Barbara Mandrell's twenty-sixth chart hit on Billboard magazine's Hot Country Singles, the first of her six #1 singles on that chart.  The single stayed at the top for three weeks (November 1978) and spent a total of eleven weeks in the top 40.  In early 1980, the song won an American Music Award for Favorite Country Single.

...In Black and White: ...In Black and White is the 12th studio album by American country artist Barbara Mandrell.  The album was released in April 1982 on MCA Records and was produced by Tom Collins.  It was Barbara Mandrell's first studio album in two years since the release of "Love Is Fair".

'Till You're Gone: "'Till You're Gone" is a song written by Walt Aldridge and Tom Brasfield, and recorded by American country music artist Barbara Mandrell.  It was released in April 1982 as the first single from the album "...In Black and White". " 'Till You're Gone" was Barbara Mandrell's fifth number one on the country chart.  The single went to number one for one week and spent a total of 14 weeks on the country top 40 chart.

Supporting paragraphs: R.C. Bannon Louise Mandrell
Answer: Louise Mandrell