Sandra, Emblem, Texas is located in Hopkins County and while there is certainly no guarantee Edmond and Emeline lived out their lives when the one child, George was born.There are two things you can do to perhaps give you more information about the family.
First the TxGenWeb Hopkins County Web Site lists a large number of cemeteries along with the inventory of grasves.You might go to that web site and see if Edmond and/or Emeline are listed in any of those.
There is a set of CDs that lists all of the people in tne United States census for 1880.There is an "anyname" function that can tell you every Edmond Tucker counted in the census and where each lived (county and state).Then it is a fairly straight forward thing to go to the proper state/county census and gather all the information on that family. This should give you a fairly complete list of the children of Edmond and Emeline. Many of the users of the 'message boards' own these 1880 CDs and all you have to do is ask for someone to look up the information.