I was born 4 December in Havana, Cuba. Needless to say, a 99% Catholic country - at least way back then. I was not given a middle name, but everyone proudly 'gave' me one, so aunts and uncles and others would call me "Alejandro* Bárbaro" in honor of my patron saint. Santa Bárbara, BTW, was very well known in Cuba. (*Alejandro later became Alexander when I became a US citizen.)
When Santa Bárbara was de-canonized, my family was upset, but I don't believe anyone thought any less of her anyway.
From the Okinawa Marines webpage (inpart)
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"The legend of St. Barbara's Day
According to an early seventh century legend, there was once a wealthy pagan named Dioscorus. Dioscorus had a very beautiful daughter, Barbara, whom he nearly kept prisoner in a guarded tower.
Dioscorus hired workers to construct a beautiful bathhouse and approved their design before he began a long trip. While he was gone, Barbara had the workmen add a third window to the design as a sign of the Holy Trinity. When Dioscorus came back from his journey he asked his daughter about the change and she confessed her conversion to Christianity. This sent Dioscorus into a rage.
Barbara was taken to the provincial prefect where she was tortured in the hopes that she would take back her confession. When she kept her faith, she was sentenced to death. Upon her sentencing, Dioscorus stepped forward to personally behead his daughter. As the legend holds, when Dioscorus lifted his sword a flash of lightning flew down from the heavens, turning him to ashes with "first-round accuracy".
Barbara is believed to be the representative of those about to die without the sacraments. She is the patron saint of groups; including fireworks makers, artillerymen, architects, founders, stonemasons, gravediggers, armorers, gunsmiths, miners, fortifications, and magazines. She protects those in danger from thunderstorms, fire and sudden death.
St. Barbara became the patroness of the artillerymen because many early artillery pieces blew up rather than firing their projectile.
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Alex