By 1944 the Brian Sisters had grown up. They had been broadcasting to and appearing for the troops during the War, but nothing remains of this, it seems.
In 1944 they were reaching the end of their career together. Betty married in the following year and the trio ceased to exist.
But all is not lost - in 1944 they appeared in the film Beautiful But Broke, singing right through Just Another Blues and fitting right into the film's requirement for a mature singing group - kiddies no longer.
The Salt Lake Tribune said of them, on February 16, 1944:
"Long Time No See
"The Brian Sisters were eight, 10 and 12 when they last appeared in a Columbia picture.
"Now the singers, exactly eight years older, are back at Columbia to do a musical number in 'Beautiful But Broke,' which features Joan Davis, Jane Frazee, Judy Clark, John Hubbard and Bob Haymes."
To reinforce this grown-upness, they also made a 78rpm record with the Freddie Slack Orchestra, Swinging On A Star. This was a good, mature performance and got them into the hit parade even though Bing Crosby (who sang the song in the film Going My Way) was top of the hit parade with the same song!
The Billboard magazine had some things to say about the song; shown on the record's page.
There's no evidence that they hit 'number one' in the charts (they are not shown as number one during 1944), but they certainly reached number five; marvelous!
Sadly, this was the only record made by the girls.
There is a comment on their personal appearance at the Orpheum, Los Angeles in April 1944.
In the Billboard magazine of April 22nd 1944:
"Orpheum, Los Angeles:
"Three Brian Sisters take over following the bands opener for vocaling on San Fernando Valley and Stardust. Warbling fits into the bill nicely, but is nothing to write home about."
In the following Billboard on 29th April appears:
"Augmenting acts included Joey Rardin, the Three Brian Sisters, and the Three Drakes."