A flowing afterglow apparatus in conjunction with laser induced fluorescence (LIF) diagnostics has been used to determine the yields of OH(X-2 Pi, v = 0,1) produced by the dissociative recombination (DR) of HCO2+, HN2O+, HCO+ ions with electrons at 300 K, The yield for v = 0 radicals was determined relative to the known OH yield from the recombination of H3O* ions while the production of vibrationally excited OH in v = 1 was obtained relative to that in v = 0 by comparing LIF spectra.