- one ▁ratio ▁between ▁its ▁height , ▁length , ▁and ▁width ), ▁the ▁large ▁opening ▁for ▁a ▁fire place , ▁and ▁the ▁small ▁size ▁of ▁the ▁other ▁open ings ▁in ▁the ▁structure . ▁ ▁Today , ▁it ▁is ▁distinguished ▁from ▁most ▁surv iving ▁log ▁cab ins ▁in ▁Ohio ▁by ▁its ▁unusual ▁degree ▁of ▁pres ervation ; ▁in ▁order ▁to ▁expand ▁them ▁into ▁larger ▁structures , ▁most ▁early ▁log ▁cab ins ▁in ▁the ▁state ▁have ▁had ▁additional ▁open ings ▁cut ▁in ▁their ▁walls , ▁but ▁the ▁Mer cer ▁cabin ' s ▁log ▁walls ▁are ▁virt ually ▁un changed ▁from ▁their ▁original ▁form . ▁ ▁Pres ervation ▁In ▁ 1 9 8 1 , ▁the ▁Mer cer ▁Log ▁House ▁was ▁listed ▁on ▁the ▁National ▁Register ▁of ▁Historic ▁Places ▁because ▁of ▁its ▁histor ically ▁significant ▁architecture . ▁ ▁It ▁is ▁one ▁of ▁three ▁Fair born ▁buildings ▁listed ▁on ▁the ▁National ▁Register , ▁along ▁with ▁the ▁ ▁Fair born ▁Theatre ▁of ▁ 1 9 4 8 ▁and ▁the ▁former ▁Bath ▁Township ▁Cons olid ated ▁School ▁of ▁ 1 9 2 4 . ▁ ▁The ▁house ▁is ▁owned ▁by ▁the ▁city ▁as ▁part ▁of ▁the ▁small ▁Mer cer - Smith ▁Historical ▁Park . ▁ ▁See ▁also ▁ ▁Log ▁building ▁ ▁References ▁ ▁Category : H ouses ▁completed ▁in ▁ 1 7 9 9 ▁Category : H ouses ▁in ▁Gre ene ▁County , ▁Ohio ▁Category : F air born , ▁Ohio ▁Category : Log ▁cab ins ▁in ▁the ▁United ▁States ▁Category : Log ▁houses ▁in ▁the ▁United ▁States ▁Category