Ralph and Roberta Winter with their three young daughters in a flight from Costa Rica to Guatemala; they lived in Costa Rica for one year to learn Spanish before moving to Guatemala to serve among the Mam people for…

Ralph and Roberta Winter lead a Jericho March around their neighborhood as an expression of prayer and belief that they would be able to purchase the campus for their frontier mission cause.

Ralph and Roberta Winter stand behind the sign at the headquarters of the organization they founded together.

Roberta and Ralph Winter on the campus of William Carey International University, with Latourette Library behind them.

Roberta and Ralph Winter view the campus map of WCIU.

Ralph Winter often used charts, graphs and maps to instruct about strategies for reaching the unreached people groups globally.

Ralph Winter speaking on a panel about frontier mission strategy at an Asian mission conference.

Artwork portraying Roberta and Ralph Winter surrounded by individuals from various unreached people groups in honor of the Winters' passion for them and leadership in the cause to reach them.

Ralph Winter was in training for the Navy but World War II ended before he was on active duty; this is his portrait in his Navy uniform.

Roberta and Ralph Winter standing in front of their family house.