  This paper discusses an abstract Kramer sampling theorem for functions within
a reproducing kernel Hilbert space (RKHS) of vector valued holomorphic
functions. Additionally, we extend the concept of quasi Lagrange-type
interpolation for functions within a RKHS of vector valued entire functions.
The dependence of having quasi Lagrange-type interpolation on an invariance
condition under the generalized backward shift operator has also been
discussed. Furthermore, the paper establishes the connection between quasi
Lagrange-type interpolation, operator of multiplication by the independent
variable, and de Branges spaces of vector valued entire functions.
