Who was responsible for promoting the picture of Our Lady of Perpetual Help?

Answer 1

The Redemporist Order was responsible for promoting the icon of Our Lady of Perpetual Help, from the Al. Alphonsus Parish website:

After three years of prayer, the Redemptorists decided to ask that the picture be brought back to Rome. When they told Pope Pius that it was Mary's own wish that she be enshrined between St. Mary Major and St. John Lateran - where the Church of St. Alphonsus now stood - the Pope immediately commanded the return of the painting. Flowers and banners greeted Our Mother of Perpetual Help on April 26, 1886, and miracles attended her procession - including the cure of a four-year-old boy suffering from a brain illness. After 75 years, Our Mother of Perpetual Help had finally returned home.

But Pius IX didn't give the picture to the Redemptorists as a gift. He gave it to them as a mission. He told them, "Make Our Mother of Perpetual Help known throughout the world." The Redemptorists embraced this command wholeheartedly by distributing reproductions of her picture and talking about her in missions and homilies around the world.

Their efforts yielded impressive results. By the turn of the century, 1.8 million Spaniards belonged to the Archconfraternity of Our Mother of Perpetual Help, ten thousand shrines and altars were dedicated to her in France, and devotions in her honor were observed in several thousand churches all over America. These services, or novenas, of Our Mother of Perpetual Help drew thousands of people. Churches in St. Louis, New Orleans, Detroit, Chicago, and Boston had to hold eight or ten services a day to accommodate everyone who wanted to honor Mary and in New York, the service was even broadcast over the radio.