This study provides baseline data to assist researchers in conducting future studies exploring the developmental trajectories of young gifted learners on measures of cognitive ability and achievement. The study includes common neuropsychological tests associated with preliteracy and the early-reading process as well as markers for inattention and executive functioning skills. Using a sample of kindergarteners identified as gifted, the results indicated that despite intelligence quotient scores in the very superior range and high means on traditional achievement measures, great variability was observed within the sample on several benchmarking measures of cognitive, academic, neuropsychological, and executive functioning. Additionally, only an average mean score on a visual–motor processing neuropsychological measure was obtained. Four neuropsychological measures provided important loadings in canonical correlations with achievement: Oromotor Sequences, Repetition of Nonsense Words, Beery-Buktenica Developmental Test of Visual-Motor Integration scores, and Speeded Naming. In addition to providing baseline data on these measures, the results also offer support for defining giftedness as a developmental process.