Combining two queries/datasets into a single table in SSRS

Hi all

I've got a question and after many attempts at googling, I can find any solutions to this. I've got two queries relating to two different entity data sets. There is no relationship between the two entities (no 1:N, N:1 or N:N relationships) but I've set the fields in each entity to match each other exactly. 

What I want to do is bring those two datasets into an SSRS report via Microsoft Visual Studio but I don't want to have it as two different tables but have one overlay their data on top of the other in a union of sorts in 1 table. This is so that we can then sort or group both datasets in a single table. As an example the two queries I've got contain:

Query 1 - Entity 1

Entity 1-name field    Entity 1-Subject field      Entity 1-Organisation Lookup field

Name value 1                Subject value 1                 Organisation lookupvalue 1

Query 2 - Entity 2

Entity 2-name field     Entity -Subject field     Entity 2-Organisation Lookup field 

Name value 2                Subject value 2               Organisation lookupvalue 2

I want to merge/append the two datasets together in SSRS so that it produces a single table via SSRS so the final output in SSRS will be:

Combined-Name field    Combined-Subject field      Combined-Organisation Lookup field

Name value 1                    Subject value 1                      Organisation lookupvalue 1

Name value 2                    Subject value 2                      Organisation lookupvalue 2

As noted there isn't a entity relationship link between the two and I simply need to append/overlay one on top of each other so that I can do a row grouping on a single table as opposed to two.

I understand Fetch does not allow unions and some of the outer join solutions listed require a connecting data point. Is there a easy way of doing this.

Any help will be greatly appreciated and thanks in advanced! 

Kind regards,

Mike