Primary School Daily Number to Letter Cipher

1 = A, 2 = B, 3 = C, 4 = D, 5 = E, 6 = F, 7 = G, 8 = H, 9 = I, 10 = J, 11 = K, 12 = L, 13 = M, 14 = N, 15 = O, 16 = P, 17 = Q, 18 = R, 19 = S, 20 = T, 21 = U, 22 = V, 23 = W, 24 = X, 25 = Y, 26 = Z
Year Letter Number
Foundation I fell 15-21-20 of bed.
One The chimney is on top 15-6 the roof.
Two I 23-15-21-12-4 like to ride on a pony.
Three This is professor Rowena 18-1-22-5-14-3-12-1-23 .
Four 2-18-9-7-8-20-12-25
Five I'd really  1-16-16-18-5-3-9-1-20-5  any help I could get.
Six he put a 3-5-9-12-9-14-7 on the number of women who worked for him