Question: Which LaCosta Tucker sister had her first hit, "Delta Dawn", in 1972 at the age of 13?

Context articles: She's All I Got
Delta Dawn (murder victim)
Delta Dawn
Delta Dawn (album)
Tanya Tucker
La Costa
Love's the Answer
The Best of Helen Reddy
Live at Billy Bob's Texas (Tanya Tucker album)
Feel So Young

"She's All I Got" is a song written by Gary U.S. Bonds and Jerry Williams, Jr. in which the male narrator pleads to someone else not to take away his lover.
 It has been recorded by several artists.
 The first version, released in 1971 by Freddie North, was a Top 40 U.S. pop hit, and a version by Johnny Paycheck was a number 2 U.S. country hit that same year.
 A second country music version was released on Conway Twitty's 1972 Decca LP I Can't See Me Without You.
 There was also a version titled "He's All I Got" that was on Tanya Tucker's 1972 album "Delta Dawn".
 Yet another cover titled "Don't Take Her She's All I've Got" was released by Tracy Byrd, whose version reached number 4 on the U.S. and Canadian country singles charts.
"Delta Dawn" is the nickname of an unidentified decedent found in Moss Point, Mississippi in late 1982.
 The child was a murder victim, as she had both been smothered and drowned shortly before her body was found in the Escatawpa River.
"Delta Dawn" is a song written by former child rockabilly star Larry Collins and songwriter Alex Harvey, best known as a 1972 top ten country hit for Tanya Tucker and a number one hit for Helen Reddy in 1973.
Delta Dawn is the début album of American country singer Tanya Tucker.
 Working with famed producer Billy Sherrill, who also produced the records of Tammy Wynette, the album began Tucker's career in country music.
 Her first released single from the album was the title song, "Delta Dawn," which reached number 6 on the Billboard Country Singles charts in April 1972.
 The other two charting singles both did slightly better: "Love's the Answer" and "The Jamestown Ferry" both rose to number 5.
 The album itself was at number 32 on the Country Albums chart.
Tanya Denise Tucker (born October 10, 1958, in Seminole, Texas) is an American country music artist who had her first hit, "Delta Dawn", in 1972 at the age of 13.
 Over the succeeding decades, Tucker became one of the few child performers to mature into adulthood without losing her audience, and during the course of her career, she notched a streak of top-10 and top-40 hits.
LaCosta Tucker (born December 12, 1951) is an American country music artist who recorded in the 1970s and 1980s as La Costa.
 The sister of country singer Tanya Tucker, LaCosta charted several singles of her own in the 1970s on the "Billboard" country singles charts, including the No. 3 "Get on My Love Train."
"Love's the Answer" is a song written by Emily Mitchell and Norro Wilson, and recorded by American country music artist Tanya Tucker.
 It was released in September 1972 as the second single from her album "Delta Dawn".
 The song peaked at number 5 on the "Billboard" Hot Country Singles chart.
 It also reached number 1 on the "RPM" Country Tracks chart in Canada.
The Best of Helen Reddy is a compilation album by Australian-American pop singer Helen Reddy that was released in 1991 by EMI Music Group and focuses exclusively on her first seven LPs.
 The 20 songs selected are evenly balanced between chart hits such as "I Am Woman", "Delta Dawn", and "Angie Baby", and lesser-known album tracks, including "Summer of '71" and "Tulsa Turnaround".
Tanya Tucker's Live at Billy Bob's Texas is another in the series featuring various country music artists performing at Billy Bob's nightclub in Fort Worth, Texas, the club that promotes itself as "The World's Largest Honky Tonk."
 In Tucker's long career this is only the second live album that she has released.
 All of the sixteen tracks are live versions of some of the better known tunes in her career, ranging from her first hit, "Delta Dawn," in 1972 to "Hangin' In" in 1994.
 A DVD version of this album is also available, and contains four additional tunes: "Oh What It Did to Me," "Love Me Like You Used To," "A Memory Like I'm Gonna Be," and "Texas (When I Die)."
Feel So Young is an album by Australian-American pop singer Helen Reddy that was released in 1990 by Helen Reddy, Inc., and includes new recordings of some of her hits ("Ain't No Way to Treat a Lady", "Angie Baby ", "I Am Woman", and "You and Me Against the World") and two songs from her 1983 "Imagination" album ("Let's Go Up" and "Looks Like Love") as well as four new songs.
 It has been reissued by many other independent labels under various names and with varying track lists, some of which include some or all of three additional re-recordings of "Delta Dawn", "I Don't Know How to Love Him", and "Leave Me Alone (Ruby Red Dress)".
 Some of the names of these reissues include: