Although they share no blood, they call themselves family.
Dionne Drugan and Roisin McCrickard were grinning 8- and 9-year-olds in their first picture together. In the most recent photo, taken 41 years later, the joy they find in being together is still apparent.
"It started when I shared her bedroom," said Roisin Marshall (formerly McCrickard). "We became sisters though and through."
The girls met in 1978 when Marshall arrived from Northern Ireland to spend seven weeks with the Drugans in Holmen, Wis.
At first, Roisin was so shy that she didn't correct her hosts for rhyming her name with "poison," rather than the Gaelic pronunciation, "Ro-sheen." But she quickly found her place among the four Drugan children, bonding with Dionne as they swam in the town pool, fished at the family cabin and played Little League at what Marshall called "the baseball pitch."
"Other than the way she talked, she was a girl like me," said Drugan. "We didn't think of anything beyond where to build the next sand castle."
Marshall was one of about 6,000 boys and girls who came to the Upper Midwest thanks to the St. Paul-based Children's Program of Northern Ireland (CPNI). The volunteer-led effort, which continued for 40 years, offered an equal number of Protestant and Catholic children a respite from the bombs and sniper fire that threatened daily existence in their religiously segregated country.
The influence of the program is still being felt today.