Symbols and Abbreviations
Symbols
A Set at altitude
+ Record was set en route to a longer distance (e.g., 1500 m record set in a mile race)
w Also a world indoor record (for American records lists)
t Ties the previously set record (either American or world depending on list)
tw Ties the previously set world record (for American records lists)
x Time disallowed as a record
y Record set in nearest yard equivalent
... There may be another record at this location in the list. Often I pulled information
from world record lists and I wasn't always able to definitively find all American
records that fell between world records set by Americans.
() Actual time that is different than the official record time
[] Alternative time that I've run across
Abbreviations
AAU Amateur Athletic Union
NYAC New York Athletic Club
Source Abbreviations
BDE Brooklyn Daily Eagle
BG Boston Globe
CT Chicago Tribune
LAT Los Angeles Times
MGP Millrose Games program
NYT New York Times
PhInq Philadelphia Inquirer
WMS The Wanamaker Millrose Story (1967 book)