Bertha has $ 6$ daughters and no sons. Some of her daughters have $ 6$ daughters, and the rest have none. Bertha has a total of $ 30$ daughters and granddaughters, and no great-granddaughters. How many of Bertha's daughters and grand-daughters have no children?

$ \textbf{(A)}\  22 \qquad \textbf{(B)}\ 23 \qquad \textbf{(C)}\  24 \qquad \textbf{(D)}\  25\qquad \textbf{(E)}\ 26$
1. Let \( x \) be the number of Bertha's daughters who have daughters.
2. Each of these \( x \) daughters has 6 daughters.
3. Therefore, the total number of granddaughters from these \( x \) daughters is \( 6x \).
4. Bertha has 6 daughters in total. Thus, the number of Bertha's daughters who do not have daughters is \( 6 - x \).
5. The total number of daughters and granddaughters is given as 30.
6. The equation representing the total number of daughters and granddaughters is:
   \[
   6 + 6x = 30
   \]
7. Solving for \( x \):
   \[
   6 + 6x = 30 \implies 6x = 24 \implies x = 4
   \]
8. Therefore, the number of Bertha's daughters who have daughters is \( x = 4 \).
9. The number of Bertha's daughters who do not have daughters is \( 6 - x = 6 - 4 = 2 \).
10. The number of granddaughters is \( 6x = 6 \times 4 = 24 \).
11. Since all granddaughters are daughters of Bertha's daughters who have daughters, none of the granddaughters have children.
12. Therefore, the total number of Bertha's daughters and granddaughters who have no children is:
    \[
    (6 - x) + 6x = 2 + 24 = 26
    \]

The final answer is \(\boxed{26}\)