Postcard showing an aerial drawing of White Gates, a religious retreat for the Sisters of Mercy at St. Mary's Lake, c. 1963 Caption on back: White Gates (front view), located on St. Mary's Lake, Battle Creek, Michigan, is a Vacation House for the Religious Sisters of Mercy, Province of Detroit. Written on back: Thurs. Left at 5:50 p.m. & arrived at Chicago 6:30. Had a snack & now waiting for the 8:05 plane. I should arrive by 10 p.m. The O'Hara field is fabulous - like a city in itself. We take North Central to Chicago & Ozark to Mason City. My best to You