Derived class Call a static method of a base class in its own static method

I read the following SO articles

• C #: How to call a static method of a base class from a static method of a derived class?
• Is it possible to get a base class where each derived class has its own copy of the static property?
• What is the right alternative to static method inheritance?

Everything seems very close to my question and has good answers, but they do not seem to answer my question, except to say that I need to make the method non-static.

example:

abstract public class baseClass
{
    private static List<string> attributeNames = new List(new string {"property1","property2"});
    // code for property definition and access
    virtual public static bool ValidAttribtue(string attributeName)
    {
        if (attributeNames.Contains(attributeName))
            return true;
        else
            return false;
    }
}
class derivedA : baseClass
{
    private static List<string> attributeNames = new List(new string {"property3","property4"});
    // code for property definition and access
    public static override bool ValidAttribute(string attributeName)
    {
        if (attributeNames.Contains(attributeName))
        {
            return true;
        }
        else
        {
            return base.ValidAttribute(attributeName);
        }
    }
}
class derivedB : baseClass
{
    private static List<string> attributeNames = new List(new string {"property10","property11"});
    // code for property definition and access
    public static override bool ValidAttribute(string attributeName)
    {
        if (attributeNames.Contains(attributeName))
        {
            return true;
        }
        else
        {
            return base.ValidAttribute(attributeName);
        }
    }
}

the resulting A would have the properties 1,2,3,4, and the derivative B would have the properties 1,2,10,11. The list of properties seems to belong to the class and cannot be changed at any time. I would have thought it would be static then.

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