The couple were due to fly home to San Diego this morning. Instead the family is now preparing for her funeral.
Emily, 27, died after a 4x4 she was a passenger in was involved in a three-vehicle collision at a junction near Drogheda, Co Louth.
Last night her remains were brought to her family home in Termonfeckin, a short distance from the crash scene.
She had returned home with her husband Sean, 34, a US Navy diver, so the couple could have a blessing in her local church, the Church of the Immaculate Conception.
The couple married in a civil ceremony in America in February 2010 but had spent the past “six or seven months planning the trip (to Ireland) and the ceremony”, Sean said.
The couple lived in San Diego and “we had a long distance relationship from San Diego to Ireland until she came out (to live) and we got married then”.
They met in June 2005 when Emily went on a J1 visa to America.
“She came out with her friends and they moved into the same apartment complex [as me]. We were perfect for each other,” he said.
The couple were today due to fly home to California and her parents John and Marie Maguire were to fly to Italy for a holiday with their son Anthony, who had travelled from Melbourne with his wife and child for the wedding ceremony.
It was a weekend of celebrations for the Maguire family because on Sunday they had celebrated the christening of their grandson Louis John; his father Terence was another brother of the deceased.
Another brother Paul, 35, was driving the vehicle when the crash happened. He was treated in Our Lady of Lourdes Hospital for his injuries, which were not life-threatening.
In the passenger seat was their mother Marie, who was discharged from hospital yesterday. The fourth son in the family, John Marcus, was also being comforted last night.
Sean’s father Ken had travelled from Chicago for the ceremony.
Sean spoke of his pride in his wife who had secured a Masters in Law in Ireland and who last month took her New York bar exams.
She was expected to pass them without any problem and she had planned to then take her California bar exams so she could practice as an attorney in San Diego.
Last night the families were preparing for Emily’s remains to be brought to her family home.
Family friend Oliver Tully, who is also the chairman of Louth County Council, said last night: “What happened is just horrific. I extend my sympathies to the whole family.
“The crossroads are notorious for accidents. There were rumble strips put down on the approach roads to it but locals say there are still drivers going straight even with the Stop signs up.”
The crash scene was sealed off until yesterday evening so that garda forensic crash collision experts could examine it.
Garda Superintendent Gerry Smith, said: “We are investigating all the circumstances of the accident which is very tragic.”
Gardaí appeal to anyone who saw the accident to contact Drogheda gardaí on 041 9874200, or the Garda Confidential Line 1800 666111.