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I notice that these categories appear twice on this page:

• Butterfield Overland Mail in Baja California‎ (7 P)
• Butterfield Overland Mail in California‎ (1 C, 66 P)
• Butterfield Overland Mail in Indian Territory‎ (14 P)
• Butterfield Overland Mail in New Mexico Territory‎ (35 P)
• Butterfield Overland Mail in Texas‎ (31 P)

Is that the correct use of the categorisation system? Eddaido ( talk) 04:56, 25 April 2018 (UTC) reply