There is no Irish symbol for rider.
The Irish word for rider is "marcach"
Horse and rider
There is no such thing as a "symbol" for athair. Athair is just an Irish word meaning father. Irish words have no "symbols".
stuff
The Irish harp
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Irish Spring is made by Colgate Palmolive and trades under the ticker symbol CL on the New York Stock Exchange.
Thunder and lightning
The shamrock was the symbol flown on US relief ships during the Irish potato famine.
It is an Irish symbol. The uniform he was wearing was that of an Irish Guards officer.
Ireland's national symbol is a harp. You will see it on Irish coins and official documents.
the Irish elk or the grey wolf
The three leaf clover, or shamrock, is a symbol for the Irish because St. Patrick used it to teach the pagans the Trinity, 3 into 1, or 3 forming 1.