Mike Willock writes: In a recent sermon, Pastor Travis reflected on a mission trip in South Dakota where he and others built housing on an Indian reservation but never was able to meet the residents to talk with them and learn their stories. During the worship service, my mind traveled back to the late 1950’s and my grandfather’s farm in Celina, TX, a small farming community about 40 miles north of Dallas. There were no land acknowledgments then, but I have since learned that present-day Collin County was part of a buffer area shared by the Caddo, Cherokee, Delaware, Kickapoo and Tonkawa tribes. I remember rich, black farming land and rolling grazing land. Today Celina is slowly being absorbed into the sprawling Dallas-Fort Worth metroplex. For several summers in my early teens I traveled by train to spend a week with my Celina grandparents. The house was built on a hilltop and last painted in 1900, with a wraparound porch and swing. The porch ceilings were light blue and ther