[en] Spectra up to 25 MeV excitation in ¹⁶O have been obtained from ¹²C(⁶Li, d) at 42 MeV bombarding energy. Angular distributions have been measured for ten states, including two Jsup(π) = 1^- states of astrophysical interest, and appear to be mostly direct α-transfer. In addition, data for ¹⁶O(⁶Li, d)²⁰Ne(g, s) and ²⁰Ne*(2⁺) have been obtained. Excitation energies and widths have been extracted for states in ¹⁶O, including several states at Esub(x) > 15 MeV. Alpha spectroscopic factors, Ssub(α) and reduced α-Widths, γ²sub(α) and theta²sub(α) have been deduced for levels in ¹⁶O and ²⁰Ne and compared with theoretical predictions. The Jsup(π) = 1^- levels in ¹⁶O at 7.12 and 9.6 MeV excitation appear to have comparable Ssub(α) and γ²sub(α) values, viz, γ²sub(α) (7.12 MeV)/γ²sub(α) (9.6 MeV) = 0.6(+1.7-0.3). Both states have apparent Ssub(α) and theta²sub(α) values smaller than that for the Jsup(π) = 2⁺ 'α-cluster' state at 6.9 MeV however. Furthermore, the observed line shape for the Jsup(π) = 1^-, 9.6 MeV level indicates GAMMAsub(c.m.) = 400 +- 50 keV, which is substantially less than the accepted width for this level (GAMMAsub(c.m.) = 510 +- 60 keV). The possible implications of these results for stellar helium burning calculations are discussed. (Auth.)