Here is a photograph from the Seaver/Carringer family collection handed down by my mother in the 1988 to 2002 time period:
My grandfather, Lyle Lawrence Carringer (1891-1903) attended Sherman Heights School in San Diego. He was in Fourth Grade in 1903, when this picture of his Fourth Grade class was taken. Lyle was always a small person, and was physically late in developing as a youth.
There are 42 children in this picture, plus the female teacher and a mature man (probably the school principal). Note that the sign held by the girl in front reads "Sherman Heights, Grade 4, 1903."
I believe that Lyle is in the front row, the second boy from the right, but I am not sure if that is him. No other boy in the picture looks like Lyle as I picture him in this time period (although I don't have a picture of him from about 1900 to about 1910).
Unfortunately, the teacher and the children are not named on the back of this picture.
There is a Sherman Elementary School in San Diego, presently at 322 22nd Street, between Island Avenue and K Street. I don't know if this is the site of the Sherman Heights School in 1903, but I think that it is. This was probably the closest elementary school to Lyle's home in 1903 at 30th and Hawthorn Streets, but it is 2.2 miles away from his home. Did he ride his bicycle, or walk? I don't think that there were streetcars at this time. Perhaps his father dropped him off on his way to work in downtown San Diego, and picked him up on the way home. I wish I could ask him!