Just to clarify a bit, names were abbreviated most often when individuals were travelling on boats or wagon trains and needed their name to be abbreviated to fit onto the passenger list, or manifest.
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"'Chevrolet,' answered
Ramona. 'I named her after my aunt's car.'
The class began to laugh, especially the boys.
Ramona felt confused, standing there in front of twenty-eight boys and girls who were all laughing at her."