Unknown Boys - maybe the Mull Brothers
I bought this photo at an antique shop in Sharon, Pa along with the photo of the little girl who is identified as Dorothy Mull of Washington, Pa. I checked census records for that area and found her there, born about 1915 with 3 brothers (ages 12, 10, & 6) and a sister age 4. These men might be her brothers at a later date.
View Photo of Dorothy Mull