How far back?

How far back do any of the shorthorn records in the ASA go? The farthest back recorded birth date is what I mean?  The farthest one I can find out of my cows is through*x4176768.  She goes back to a bull EDELLYN ROYAL LEADER 2D #2155988 born is December '41 by way of her MGGS- MR NEW ALLIANCE 50L.

Not sure about ASA but I have registration papers (AHA) dated back to 1932, but I have never asked them if those records were still on file. Might have to ask next time I call them, it would be interesting to find out what they have.