Walter Krug - dates of employment at Parker?

[BRDHNTR]

Can someone give me the dates of Walter King's employment with Parker Bros? I have a DHE that was at some point re-barreled by Parker and has Walter's stamp on the underside of the breech. The Parker letter I have in my possession only addresses the original configuration which was Damascus barreled. At some point it was returned to Parker and re-barreled with a Titanic barrel and serialized with the same original serial number.

Knowing King's employment dates will give me at least the timeframe/period during which the DHE was re-barreled.

Thanks in advance