DC 37 Executive Director Lillian Roberts joined Democratic Party gubernatorial candidate H. Carl McCall, United States Senator Charles E. Schumer, Rep. Charles B. Rangel, Manhattan Borough President C. Virginia Fields and famed attorney Johnnie Cochran at the front of the annual African American Day Parade in Harlem.

Thousands of African Americans and other New Yorkers marched along Adam Clayton Powell Jr. Boulevard on Sept. 22 with musical groups, colorful floats and the Harlem baseball team that made it all the way to the final round of the Little League World Series.

DC 37’s green and white float bore the theme, “Union Power is Political Power.” With Ms. Roberts and DC 37 staff leading the way, it proudly rolled down the crowded boulevard as members along the parade route enthusiastically waved and yelled out, “That’s our union!”

Union leaders from Health Services Employees Local 768 and Social Service Employees Union Local 371 also marched with large contingents of members.

“It is an honor and a privilege to be leading this union through this community, which has a long history of producing so many great labor leaders,” said Ms. Roberts.

Sylvia Ash, Angela Robinson, Jose Sierra, Audrey McConny, Maynard Anderson, Tessa Hackett-Vieira and Cynthia Chin Marshall — members of the DC 37 Black History Committee — coordinated the union’s participation at the parade. Mr.McCall was the grand marshal.

— Alfredo Alvarado