No, though the two 19s do suggest that the extended norms may add information to your child's assessment. Raw scores indicate the number of actual points obtained or credited on a subtest. The numbers you have are subtest scaled scores, which indicate performance relative to age peers. 10 is the mean. 19 is 3 standard deviations above the mean. Since one would expect the typical 14-year-old to do better in absolute terms than the typical 6-year-old, using raw scores confounds high performance due to typical development and high performance due to unusually high cognition. Using age-normed scaled scores allows a child to be compared to her age-peers, which should minimize the impact of differences due to normal development.

At age 6, you would be looking for multiple 19 scaled scores for extended norms. (not 18s or lower)

...pronounced like the long vowel and first letter of the alphabet...