pageants

This appears to be Elizabeth Freeman (waving, head turned, holding flag), followed by the five "Suffrage news girls" as seen here:
(the news girls appear in the same order in both photographs)

"Suffrage news girls - Liz Freeman (LOC)" by Library of Congress

NYTimes reported in 1913: "HEMPSTEAD, L.I., May 22. -- The townsfolk here are waiting with much curiosity for the suffrage pageant which Gen. Rosalie Jones has arranged for next Saturday afternoon. On that day those interested in the suffrage cause, will march from Mineola to this place. At the trolley junction the parade will be reviewed by Assemblyman O'Keefe and officials of Nassau County." Two days later, also in the New York Times: "Hempstead, N.Y., May 24. -- Three miles of public highway between Mineola and Hempstead were crowded this afternoon with a long line of automobiles from all parts of Nassau County as they followed the suffrage pageant, in which 500 women and a few men marched as enthusiastic upholders of the cause."

There seem to be conflicting dates: New York Times article (above) dated May 22d (a Thursday) ... reports the pageant will be "next Saturday afternoon" (May 24, 1913) ["The parade will start from Mineola at 2:15 o'clock."]. The second New York Times article, dated May 24, 1913, refers to pageant taking place "this afternoon" (Saturday). The date etched into the Bain News Service negative (above) -- as well as on some other negatives apparently taken at the same time -- is "May 25, 1913" (Sunday). Some, such as "Suffrage news girls", appear to bear a date of "May 26, 1913" (Monday).

I wonder if the parade/pageant ran for several days? A march one day, a festival-type event in Hempstead the next day or two?

Pixel Wrangler and pennylrichardsca: Thanks for the additional information and the alert about the conflicting dates. We'll at least update the source data to add the year of the parade for this and the other related images of the event that you've identified.

The stadium is a bit larger now...

Thats classic...

Thanks for Deliverance!

Presumably the one on the Thames is Henley Regatta.

I agree, Only Four Terms Til I Retire, this is almost certainly at Henley. See www.fotosearch.com/IST530/1232076/ for photo of similar houseboat.