Try the National Archives, USGS EarthExplorer, state transportation and agricultural agencies, county planning offices, universities and local historical societies.
Often not reliably. Many older images lack the resolution to identify small objects, so describe only features that are clearly visible.
Leaves, snow or flooding can hide or change features, so the same place can look very different depending on when it was photographed.
Do not draw that conclusion from imagery alone. Ground marks have many ordinary causes; share concerns privately with investigators instead.
Record the holding source, flight or project identifier, frame number, flight date and the specific copy you examined.