Table 5: EWs of the 6300.30 Å O  I line derived oxygen abundances. In both columns, the global cluster errors for the cluster refer to the standard deviations in the abundances originating in the single stars, while reported errors in single star abundance measurements come from the uncertainty in the EWs. See the text for the errors due to the parameter uncertainty.
Star EW 6300.30 Å (mA) n(O) [O/Fe]
AHTC 1009 $7.0 \pm 1$ $8.91 \pm 0.09$ $ 0.25 \pm 0.13$
Eggen 70 $4.7 \pm 0.8$ $8.75 \pm 0.07$ $ 0.16 \pm 0.11$
NGC 3680   $8.83 \pm 0.08$ $ 0.20 \pm 0.05$
KW 100 - - -
KW 208 - - -
KW 326 $5.4 \pm 0.8$ $8.51 \pm 0.17$ $-0.44 \pm 0.20 $
KW 368 $5.0 \pm 0.8$ $8.40 \pm 0.17$ $-0.52 \pm 0.20 $
KW 392 $4.8 \pm 0.5$ $8.69 \pm 0.10$ $-0.32 \pm 0.15$
KW 418 $4.0 \pm 1$ $8.48 \pm 0.20$ $-0.42 \pm 0.22$
KW 49 - - -
Praesepe   $8.52 \pm 0.12$ $-0.42 \pm 0.08$
Sanders 1048 $4.4 \pm 0.6$ $8.49 \pm 0.09$ $-0.20 \pm 0.13$
Sanders 1092 $4.5 \pm 1.5$ 8.67 +0.19-0.32 -0.06 +0.21-0.33
Sanders 1255 $5.3 \pm 0.4$ $8.68 \pm 0.06$ $ 0.01 \pm 0.12$
Sanders 1283 - -  
Sanders 1287 $4 \pm 1 $ 8.58 +0.14-0.19 -0.04 +0.17-0.21
Sanders 746 $5.3 \pm 0.7$ $8.65 \pm 0.1$ $-0.08 \pm 0.13 $
M 67   $8.61 \pm 0.08$ $-0.07 \pm 0.08$


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