diff --git a/src/daemon/MoneroDaemon.h b/src/daemon/MoneroDaemon.h
index 791be29..4cb7930 100644
--- a/src/daemon/MoneroDaemon.h
+++ b/src/daemon/MoneroDaemon.h
@@ -27,4 +27,105 @@ namespace monero {
     //MoneroRpcConnection() : uri(""), username(""), password("")) {}
     MoneroRpcConnection(const string& uri = "", const string& username = "", const string& password = "") : uri(uri), username(username), password(password) {}
   };
+
+  // forward declarations
+  struct MoneroTx;
+  struct MoneroBlock;
+
+  /**
+   * Models a Monero block header which contains information about the block.
+   */
+  struct MoneroBlockHeader {
+    string id;
+    uint64_t height;
+    uint64_t timestamp;
+    uint64_t size;
+    uint64_t weight;
+    uint64_t longTermWeight;
+    uint64_t depth;
+    uint64_t difficulty;
+    uint64_t cumulativeDifficulty;
+    uint32_t majorVersion;
+    uint32_t minorVersion;
+    uint64_t nonce;
+    string coinbaseTxId;
+    uint32_t numTxs;
+    bool orphanStatus;
+    string prevId;
+    uint64_t reward;
+  };
+
+  /**
+   * Models a Monero block in the blockchain.
+   */
+  struct MoneroBlock : public MoneroBlockHeader {
+    string hex;
+    MoneroTx coinbaseTx;
+    vector<MoneroTx> txs;
+    vector<string> txIds;
+  };
+
+  /**
+   * Models a Monero key image.
+   */
+  struct MoneroKeyImage {
+    string hex;
+    string signature;
+  };
+
+  /**
+   * Models a Monero transaction output.
+   */
+  struct MoneroOutput {
+    MoneroTx* tx;
+    MoneroKeyImage keyImage;
+    uint64_t amount;
+    uint32_t index;
+    vector<uint32_t> ringOutputIndices;
+    string stealthPublicKey;
+  };
+
+  /**
+   * Models a Monero transaction on the blockchain.
+   */
+  struct MoneroTx {
+    MoneroBlock* block;
+    string id;
+    string version;
+    bool isCoinbase;
+    string paymentId;
+    uint64_t fee;
+    uint32_t mixin;
+    bool doNotRelay;
+    bool isRelayed;
+    bool isConfirmed;
+    bool inTxPool;
+    uint64_t numConfirmations;
+    uint64_t unlockTime;
+    uint64_t lastRelayedTimestamp;
+    uint64_t receivedTimestamp;
+    bool isDoubleSpend;
+    string key;
+    string fullHex;
+    string prunedHex;
+    string prunableHex;
+    string prunableHash;
+    uint32_t size;
+    uint32_t weight;
+    vector<MoneroOutput> vins;
+    vector<MoneroOutput> vouts;
+    vector<uint32_t> outputIndices;
+    string metadata;
+    string commonTxSets;
+    //uint32_t* extra[];    // TODO: flexible member?
+    string rctSignatures;   // TODO: implement
+    string rctSigPrunable;  // TODO: implement
+    bool isKeptByBlock;
+    bool isFailed;
+    uint32_t lastFailedHeight;
+    string lastFailedId;
+    uint32_t maxUsedBlockHeight;
+    string maxUsedBlockId;
+    vector<string> signatures;
+  };
 }
diff --git a/src/wallet/MoneroWallet.h b/src/wallet/MoneroWallet.h
index 09a5b52..1316721 100644
--- a/src/wallet/MoneroWallet.h
+++ b/src/wallet/MoneroWallet.h
@@ -26,20 +26,6 @@ namespace monero {
     MoneroSyncResult(const uint64_t numBlocksFetched, const bool receivedMoney) : numBlocksFetched(numBlocksFetched), receivedMoney(receivedMoney) {}
   };
 
-  /**
-   * Models a Monero block header.
-   */
-  struct MoneroBlockHeader {
-    uint64_t height;
-  };
-
-  /**
-   * Models a Monero block.
-   */
-  struct MoneroBlock : public MoneroBlockHeader {
-    // TODO
-  };
-
   /**
    * Models a Monero subaddress.
    */
@@ -90,6 +76,54 @@ namespace monero {
     END_KV_SERIALIZE_MAP()
   };
 
+  // forward declarations
+  struct MoneroTxWallet;
+
+  /**
+   * Models an outgoing transfer destination.
+   */
+  struct MoneroDestination {
+    string address;
+    uint64_t amount;
+  };
+
+  /**
+   * Models a base transfer of funds to or from the wallet.
+   */
+  struct MoneroTransfer {
+    MoneroTxWallet tx;
+    uint64_t amount;
+    uint32_t accountIndex;
+    bool isIncoming;
+  };
+
+  /**
+   * Models an incoming transfer of funds to the wallet.
+   */
+  struct MoneroIncomingTransfer : public MoneroTransfer {
+    uint32_t subaddressIndex;
+    string address;
+  };
+
+  /**
+   * Models an outgoing transfer of funds from the wallet.
+   */
+  struct MoneroOutgoingTransfer : public MoneroTransfer {
+    vector<uint32_t> subaddressIndices;
+    vector<string> addresses;
+    vector<MoneroDestination> destinations;
+  };
+
+  /**
+   * Models a Monero transaction in the context of a wallet.
+   */
+  struct MoneroTxWallet : public MoneroTx {
+    vector<MoneroIncomingTransfer> incomingTransfers;
+    MoneroOutgoingTransfer outgoingTransfer;
+    uint32_t numSuggestedConfirmations;
+    string note;
+  };
+
   // --------------------------------- LISTENERS ------------------------------
 
   //  class i_wallet2_callback