545 BIOGRAPHICAL OR HISTORICAL NOTE (R)Indicators First - Type of Data ^ No information provided 0 Biographical sketch 1 Administrative history Second Undefined; contains a blank (^)Subfield Codes $a Biographical or historical note (NR) $b Expansion of biographical or historical note (NR) $u Uniform Resource Identifier (R) $6 Linkage (NR) $8 Field link and sequence number (R)