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<https://texashistory.unt.edu>
<https://texashistory.unt.edu/explore/collections/TDNP/browse/?sort=date_a&fq=str_month%3A04_apr&fq=untl_decade%3A1870-1879&fq=untl_institution%3ABSTPL&fq=str_year%3A1874>