Photo caption from published version of photo: "SOME WORK, OTHERS PLAY - While hundreds enjoyed the cool waters of the Municipal Swimming Pool yesterday, shown in top photo [47-707_001], to set an attendance record of 3, 338, workman were operating bone-shaking compressed air drills on the King St., Waterloo paving project. In lower photo [not from this envelope], left to right, are Don Youngblut, Bill [Mesz?] and Tony [Ferri?]."