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Maps each cleaned title variant (title.variant, matched to TitleTxt7) to its standard form (title.standard), with an optional board sub-role in strata / strata.label. Used by standardize_titles(); load it with get_title_xwalk().

Format

A data frame of character columns: title.variant, title.standard, strata, strata.label.

Source

data-raw/crosswalks/title-standardization.csv, started from the title-taxonomy-map Google Sheet (retired 2026-10-08).