21. Planer Format: Photographs Collection: Hyde Park High School Records Date: [1920?–1930?] Institution: Boston City Archives
22. Skilling at lathe Format: Photographs Collection: Hyde Park High School Records Date: [1920?–1930?] Institution: Boston City Archives
23. [Student] Format: Photographs Collection: Hyde Park High School Records Date: December 1977 Institution: Boston City Archives
24. [Student at a machine] Format: Photographs Collection: Hyde Park High School Records Date: [1920?–1930?] Institution: Boston City Archives
25. [Student at a machine] Format: Photographs Collection: Hyde Park High School Records Date: [1920?–1930?] Institution: Boston City Archives
26. [Student digging with man looking on] Format: Photographs Collection: Hyde Park High School Records Date: [1900?–1920?] Institution: Boston City Archives
27. [Student with a teacher] Format: Photographs Collection: Hyde Park High School Records Date: August 1978 Institution: Boston City Archives
28. [Student working at a machine] Format: Photographs Collection: Hyde Park High School Records Date: [1940?–1950?] Institution: Boston City Archives
29. [Student working at a machine] Format: Photographs Collection: Hyde Park High School Records Date: [1940?–1950?] Institution: Boston City Archives
30. [Student working at a machine] Format: Photographs Collection: Hyde Park High School Records Date: [1940?–1950?] Institution: Boston City Archives
31. [Student working at a machine] Format: Photographs Collection: Hyde Park High School Records Date: [1950?–1960?] Institution: Boston City Archives
32. [Student working at a machine] Format: Photographs Collection: Hyde Park High School Records Date: [1940?–1950?] Institution: Boston City Archives
33. [Student working at a machine] Format: Photographs Collection: Hyde Park High School Records Date: [1900?–1920?] Institution: Boston City Archives
34. [Student working in the machine shop] Format: Photographs Collection: Hyde Park High School Records Date: [1900?–1920?] Institution: Boston City Archives
35. [Students at a machine] Format: Photographs Collection: Hyde Park High School Records Date: [1920?–1930?] Institution: Boston City Archives
36. [Students at an outdoor assembly] Format: Photographs Collection: Hyde Park High School Records Date: [1940?–1950?] Institution: Boston City Archives
37. [Students in the machine shop] Format: Photographs Collection: Hyde Park High School Records Date: [1920?–1930?] Institution: Boston City Archives
38. [Students in the machine shop] Format: Photographs Collection: Hyde Park High School Records Date: [1920?–1930?] Institution: Boston City Archives
39. [Students singing in an auditorium] Format: Photographs Collection: Hyde Park High School Records Date: [1940?–1950?] Institution: Boston City Archives
40. [Students working at a machine] Format: Photographs Collection: Hyde Park High School Records Date: [1900?–1920?] Institution: Boston City Archives