Docking Station Compatibility

Greetings,

We are using Dell latitude laptops and Dell docking stations at our office and we are facing issues with working on the docking station frequently. i thought one cause could be compatibility issue and i tried checking which docking station is compatible with which laptops, but to my surprise the information online is very confusing. Different answers on different sites for the same request. Below is a table listing the docking stations and laptops we have at our office and appreciated if anyone can help me in identifying the compatibility of the items.

I look forward to your prompt reply,

Thanks,

Daniel