It is good that this information is available. In looking at this site I reviewed this troops Policies and found that they have an extensive list of troop rules that are against BSA policy.
The significant changes in requirements is not the merit badge requirements themselves, but rather, you could nor earn merit badges until you were 1st Class. The exception was aquatics badges at Summer Camp.
Anyone have an idea when the Eagle Service Project Workbook was first started and associated project approval done at the District level? The web site provided and the historic rEagle equirements section of eaglescout.org don't say. the eaglescout.org site also has more dates listed.