| 04/01/1949 | Son of John Barker. |
| 06/18/1967 | Drafted in the 1967 first-year player draft out of high school (Monroe; Monroe, WA) by the Minneapolis Millers. (Round 1, Pick 6, 6th overall pick). |
| 07/06/1967 | Named the #89 prospect in the FABL |
| 03/26/1968 | Unsuccessfully completed training to generate gap power at the Minneapolis Millers development complex. |
| 04/10/1968 | Named the #67 prospect in the FABL |
| 03/21/1969 | Unsuccessfully completed training to generate more batspeed and homerun power at the Minneapolis Millers development complex. |
| 04/10/1969 | Named the #55 prospect in the FABL |
| 09/15/1969 | Wins the 1969 Upper Mississippi Valley Association UMVA Championship Series with the St. Cloud Lumberjacks! |
| 11/19/1969 | Was traded by the Minneapolis Millers to the Boston Minutemen in exchange for RP Jimmy Blair. |
| 04/10/1970 | Detrimentally completed training to improve his baserunning fundamentals at the Boston Minutemen development complex. |
| 07/23/1970 | Injured (quadriceps soreness),day-to-day for one week. |
| 03/21/1971 | Unsuccessfully completed training to improve his quality of contact at the Boston Minutemen development complex. |
| 12/10/1971 | Added to the secondary (40-man) roster for the Boston Minutemen. |
| 04/17/1973 | Designated for assignment and placed on waivers by the Boston Minutemen. |
| 06/05/1973 | Released by the Boston organization. |