Her early successes were achieved with "The Gypsy", "A Tree in the Meadow" and "I'm Walking Behind You" by her partner Billy Reid, and "Say It with Flowers" written by Squires with piano accompaniment by Russ Conway.

Born in her parents' carnival caravan in Pontyberem (about 12 miles from Llanelli), Carmarthenshire, Wales, to a steelworker, Archibald James Squires, and his wife, Emily, she wanted a piano as a child.

[citation needed] After World War II, she worked on the BBC radio show Variety Bandbox, which led to her becoming the highest paid female singer in the UK at the time.

[citation needed] Squires met the actor Roger Moore at one of her parties at her mansion in Old Bexley, Kent.

She was also one of several artists charged with bribing a BBC radio producer as part of a scheme to make him play her records; the case was dropped.

[citation needed] Squires was provided with a home in Trebanog, Rhondda, South Wales, by a fan, Esme Coles.

[citation needed] Squires retired there becoming a recluse, and died in 1998 of lung cancer, aged 83, at Llwynypia Hospital, Rhondda.

[3] On 20 May 2013, a commemorative blue plaque was unveiled outside Aston House on New Road in Llanelli, where Squires and her family took up residence in her fifteenth year.

The unveiling was performed by Ruth Madoc, who was portraying the older Dorothy Squires in the play, Say It with Flowers, by Meic Povey and Johnny Tudor.

[10] A previous staged tribute to her, Dorothy Squires: Mrs Roger Moore, written by Richard Stirling and starring Al Pillay in the title role, premiered at the White Bear Theatre in London on 6 June 2012, with a subsequent engagement at the Edinburgh Festival Fringe in August that year.