Elizabeth Ann Seton was an Episcopalian and a wealthy socialite in New York. She married the scion of a wealthy shipping family, and they started a family. Life was wonderful. But tragedy struck: her father in law and her husband died, and the family shipping business failed. At 29 she was a widow with five children and no means of support. While seeking solace she became Catholic after being struck by the example of the Filicchi brothers, who had been business associates of her husband. Her conversion cost her her friends and brought about hardship. She moved to Baltimore to work with Father William Louis Dubourg and Bishop John Carroll to establish a school for girls. Eventually she took religious vows and became the first mother superior of the Sisters of Charity of St. Joseph. The new order moved to Emmitsburg, Maryland where they built a home and a school near Mount St. Mary's. The parochial school system in the United States traces its roots to her pioneering work. She died at just 46 years old, and became the first American-born person to be canonized in 1975.

Mother Catherine Spalding spent 45 years leading and building the Sisters of Charity of Nazareth in Louisville and central Kentucky. Born in Maryland in 1793, her family moved to the Bardstown, Kentucky area when she was very young. She became an orphan at an early age, and lived with relatives until joining the fledgling order in 1813. She was elected the first Mother Superior that year, when she was 19 years old. She died in 1858, after her order had grown significantly, and was responsible for dozens of schools, orphanages, infirmaries, and homes for the homeless and destitute. In the 21st century she was named one of the 16 most influential persons in the history of Louisville and Jefferson County — the only woman on the list — and a statue of her was unveiled in 2015. It stands outside the Cathedral of the Assumption, and it is the only statue of a woman erected in a public place in Kentucky.

In 1790 four Carmelite nuns — three native Marylanders and a woman originally from England — came from Hoogstraeten in what is not Belgium to establish a Carmelite monastery in Port Tobacco, Maryland. The native Marylanders were members of the Matthews family, one of the earliest and most prominent Catholic families in Maryland. This was the first women’s religious community established within the United States of America. They were aided by members of the Neale family — another prominent early Catholic family in Maryland. One of those Neales, Charles Neale, had been the chaplain of the Carmel in Hoogstraeten, and his family was happy to make a plot of land available on which the Carmelites could build their new monastery. The Carmel flourished initially, but eventually the sisters were compelled to move to a Carmel in Baltimore. The original Carmel fell into disrepair until local residents kicked in to maintain the buildings and the grounds in the hope that the Carmelites might return. They finally did.

Margaret Haughery came to America as a child in 1818 and promptly lost her entire family to disease and desertion. She married and had a child, but before her 24th birthday she lost her husband and daughter to disease. Through the help of her parish priest she turned this tragedy and pain into energy to work hard and help others. For the next 40-plus years she became one of the most prominent philanthropists in New Orleans, turning a dairy business, and then a bread empire, into orphanages, homes for indigent mothers and elderly, and schools. She became known as "The Bread Woman of New Orleans." Her death in 1882 was a public calamity. The archbishop, many priests, many politicians, and even the Pope honored her at her funeral. Two years later a public monument to her was erected, the first statue honoring a woman erected on public land in the United States.

The Basilica of the National Shrine of the Assumption of the Blessed Virgin Mary, more commonly known as “The Baltimore Basilica,” was the first cathedral built in the United States. Archbishop John Carroll conceived of the idea of building a grand cathedral in Baltimore in 1792, but his plans didn’t come to fruition until the early 1800s. And in spite of being a poor diocese, Carroll believed this cathedral was important to build because of “Amplitude.” This cathedral was designed by the great American architect Benjamin Henry Latrobe and is considered his masterpiece — even moreso than the U.S. Capitol Building in Washington, D.C. Listen to learn more.

Carlos Manuel Rodriguez came from a humble but devout family in Puerto Rico. He suffered from a terrible illness for most of his life. He barely graduated high school and couldn't complete college. But he had a deep love of Christ and of the Liturgy, particularly the Easter Vigil. He would say of that liturgy, "¡Vivimos para esa noche!", "We live for that night!" He engaged in great catechetical works and organized groups at the University of Puerto Rico and in many parishes to discuss the liturgy. He believed that the faithful needed to be helped to learn about the liturgy, so they might know their faith better. He also advocated for small changes to the liturgy, including including the vernacular in places, and making it easier for the faithful to engage in full active participation. His health deteriorated in early 1963, when he was diagnosed with terminal cancer. He died in July 1963. Students who had learned from him carried on his legacy and eventually organized to promote his cause of canonization. A miracle was approved in 1999 which led to Pope John Paul II declaring him Blessed Carlos Manuel Rodriguez in 2001. He is the first Caribbean layman to be beatified, and only the second layman in the western hemisphere

Benjamin Franklin and Father John Carroll, SJ became friends on an ill-fated mission to Canada in 1776 during the opening stages of the Revolutionary War. The Continental Congress sent Franklin, Charles Carroll of Carrollton, Samuel Chase, and Father John Carroll on a mission to try to persuade the Canadians to join in the rebellion. Franklin was already ill when the trip began, and his condition worsened. He chose to leave Canada early when it was obvious that the mission would not succeed, so Father John Carroll decided to accompany him to help nurse him on the voyage. Franklin credited Carroll's ministrations with saving his life, and he never forgot Carroll's kindness and care. Because of this friendship, when Ben Franklin was the American ambassador to France, and the Church was looking to establish a hierarchy in the new American nation, he was in a position to put in a good word for Carroll. In 1784 Carroll was named "Superior of the Missions," and then in 1789 he was named the first bishop of Baltimore. He became archbishop of Baltimore in 1808, and died in 1815

The first St. Patrick's Day Festivities were held, oddly enough, in St. Augustine, Florida in 1600. More than 130 years later the first permanent St. Patrick's Day celebrations as we know them began in Boston, and then 25 years later in New York City, both in the 18th century. The first St. Patrick's Day Parade was held by Irish soldiers in the British army stationed in New York City, who got up on March 17, 1762 and paraded through the streets of Manhattan to a tavern for breakfast. The tradition has stuck. The celebration remained and grew because it was a way for Irish, particularly Irish Catholics, to assert their presence in the New World, and to celebrate their own native culture in this land where they were a minority, not always trusted, but who were intent on staying and being part of this new nation. Since the mid-20th century the American phenomenon of St. Patrick's Day celebrations has both returned to Ireland, where it is a major four-day event, and it has spread throughout the world wherever Irish can be found in large numbers.