It is very apt that Saint Frances of Rome, a 14th-century saint was frequently led by an angel of light that illumined her nighttime travels. Even this saint never lived to see the invention of the automobile, she is the patron saint of automobile drivers.
In The Life of St. Frances of Rome, Georgiana Fullerton explains how she would frequently be illumined by her angel at nighttime.
“When she left the oratory, the archangel followed her, and, enveloped in a halo of light, remained always visible to her, though imperceptible to others. The radiance that surrounded him was so dazzling, that she could seldom look upon him with a fixed gaze. At night, and in the most profound darkness, she could always write and read by the light of that supernatural brightness.”
After the invention of the automobile, many Catholics started to turn to St. Frances and ask for her intercession while they traveled at night, praying that they would receive the same kind of angelic protection.